From ed12366d52700ab2a968262e7fc4e951540cbe77 Mon Sep 17 00:00:00 2001
From: Ludovic Fernandez <ldez@users.noreply.github.com>
Date: Fri, 5 Apr 2019 11:58:06 +0200
Subject: [PATCH] Update tracing dependencies

---
 Gopkg.lock                                    |   35 +-
 Gopkg.toml                                    |    6 +-
 integration/resources/compose/tracing.yml     |    4 +-
 pkg/tracing/zipkin/zipkin.go                  |    2 +-
 vendor/github.com/apache/thrift/NOTICE        |    4 +-
 .../lib/go/thrift/application_exception.go    |   46 +-
 .../thrift/lib/go/thrift/binary_protocol.go   |   11 +-
 .../lib/go/thrift/buffered_transport.go       |    9 +-
 .../apache/thrift/lib/go/thrift/client.go     |   85 ++
 .../thrift/lib/go/thrift/compact_protocol.go  |   13 +-
 .../go/thrift/{processor.go => context.go}    |   10 +-
 .../thrift/lib/go/thrift/debug_protocol.go    |    5 +-
 .../thrift/lib/go/thrift/framed_transport.go  |   18 +-
 .../thrift/lib/go/thrift/http_client.go       |   80 +-
 .../thrift/lib/go/thrift/http_transport.go    |   35 +-
 .../lib/go/thrift/iostream_transport.go       |   28 +-
 .../thrift/lib/go/thrift/json_protocol.go     |    5 +-
 .../thrift/lib/go/thrift/memory_buffer.go     |    9 +-
 .../lib/go/thrift/multiplexed_protocol.go     |    7 +-
 .../thrift/lib/go/thrift/processor_factory.go |   12 +
 .../apache/thrift/lib/go/thrift/protocol.go   |   12 +-
 .../lib/go/thrift/protocol_exception.go       |    3 +-
 .../thrift/lib/go/thrift/rich_transport.go    |    1 -
 .../apache/thrift/lib/go/thrift/serializer.go |   16 +-
 .../thrift/lib/go/thrift/server_socket.go     |   31 +-
 .../lib/go/thrift/simple_json_protocol.go     |    5 +-
 .../thrift/lib/go/thrift/simple_server.go     |   83 +-
 .../apache/thrift/lib/go/thrift/socket.go     |    6 +-
 .../thrift/lib/go/thrift/ssl_server_socket.go |    5 +-
 .../apache/thrift/lib/go/thrift/ssl_socket.go |   15 +-
 .../apache/thrift/lib/go/thrift/transport.go  |   12 +-
 .../thrift/lib/go/thrift/transport_factory.go |    6 +-
 .../thrift/lib/go/thrift/zlib_transport.go    |   29 +-
 .../apache/thrift/tutorial/hs/LICENSE         |  239 +++
 .../opentracing/opentracing-go/LICENSE        |  214 ++-
 .../opentracing/opentracing-go/ext/tags.go    |   16 +-
 .../opentracing-go/globaltracer.go            |   18 +-
 .../opentracing/opentracing-go/gocontext.go   |   19 +-
 .../opentracing/opentracing-go/log/field.go   |   24 +
 .../opentracing/opentracing-go/propagation.go |   14 +-
 .../opentracing/opentracing-go/span.go        |    4 +
 .../opentracing/opentracing-go/tracer.go      |    5 +-
 .../zipkin-go-opentracing/LICENSE             |    0
 .../zipkin-go-opentracing/collector-http.go   |   85 +-
 .../zipkin-go-opentracing/collector-kafka.go  |    2 +-
 .../zipkin-go-opentracing/collector-scribe.go |   16 +-
 .../zipkin-go-opentracing/collector.go        |    7 +-
 .../zipkin-go-opentracing/context.go          |    4 +-
 .../zipkin-go-opentracing/debug.go            |    0
 .../zipkin-go-opentracing/event.go            |    0
 .../zipkin-go-opentracing/flag/flags.go       |    0
 .../log-materializers.go                      |    0
 .../zipkin-go-opentracing/logger.go           |    0
 .../zipkin-go-opentracing/observer.go         |    2 +-
 .../zipkin-go-opentracing/propagation.go      |    4 +-
 .../zipkin-go-opentracing/propagation_ot.go   |   61 +-
 .../zipkin-go-opentracing/raw.go              |    0
 .../zipkin-go-opentracing/recorder.go         |    0
 .../zipkin-go-opentracing/sample.go           |    0
 .../zipkin-go-opentracing/span.go             |    2 +-
 .../gen-go/scribe/GoUnusedProtection__.go     |    7 +
 .../thrift/gen-go/scribe/scribe-consts.go}    |    8 +-
 .../thrift/gen-go/scribe/scribe.go            |  551 +++++++
 .../gen-go/zipkincore/GoUnusedProtection__.go |    7 +
 .../gen-go/zipkincore/zipkinCore-consts.go}   |    7 +-
 .../thrift/gen-go/zipkincore/zipkinCore.go    | 1285 +++++++++++++++++
 .../zipkin-go-opentracing/tracer.go           |    2 +-
 .../zipkin-go-opentracing/types/traceid.go    |    6 +-
 .../zipkin-go-opentracing/util.go             |    0
 .../zipkin-go-opentracing/wire/carrier.go     |    4 +-
 .../zipkin-go-opentracing/wire/gen.go         |    2 +-
 .../zipkin-go-opentracing/wire/wire.pb.go     |   42 +-
 .../zipkin-go-opentracing/zipkin-endpoint.go  |    2 +-
 .../zipkin-go-opentracing/zipkin-recorder.go  |   89 +-
 .../thrift/gen-go/scribe/scribe.go            |  431 ------
 .../thrift/gen-go/scribe/ttypes.go            |  185 ---
 .../thrift/gen-go/zipkincore/ttypes.go        | 1272 ----------------
 .../uber/jaeger-client-go/config/config.go    |    4 +-
 .../jaeger-client-go/config/config_env.go     |   63 +-
 .../uber/jaeger-client-go/config/options.go   |   10 +-
 .../uber/jaeger-client-go/constants.go        |    2 +-
 .../uber/jaeger-client-go/context.go          |    2 +-
 .../uber/jaeger-client-go/header.go           |    3 +-
 .../uber/jaeger-client-go/metrics.go          |   52 +-
 .../uber/jaeger-client-go/propagation.go      |   39 +-
 .../jaeger-client-go/rpcmetrics/metrics.go    |    2 +-
 .../thrift-gen/zipkincore/constants.go        |    3 +
 .../thrift-gen/zipkincore/ttypes.go           |   90 ++
 .../uber/jaeger-client-go/tracer.go           |   26 +-
 .../uber/jaeger-client-go/tracer_options.go   |    4 +-
 .../uber/jaeger-client-go/zipkin/doc.go       |    2 +-
 .../jaeger-client-go/zipkin/propagation.go    |   50 +-
 .../jaeger-client-go/zipkin_thrift_span.go    |    8 +-
 .../uber/jaeger-lib/metrics/factory.go        |   59 +-
 .../uber/jaeger-lib/metrics/histogram.go      |   28 +
 .../uber/jaeger-lib/metrics/keys.go           |   35 +
 .../uber/jaeger-lib/metrics/local.go          |  337 -----
 .../uber/jaeger-lib/metrics/metrics.go        |   76 +-
 98 files changed, 3371 insertions(+), 2808 deletions(-)
 create mode 100644 vendor/github.com/apache/thrift/lib/go/thrift/client.go
 rename vendor/github.com/apache/thrift/lib/go/thrift/{processor.go => context.go} (74%)
 create mode 100644 vendor/github.com/apache/thrift/tutorial/hs/LICENSE
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/LICENSE (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/collector-http.go (78%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/collector-kafka.go (96%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/collector-scribe.go (94%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/collector.go (93%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/context.go (92%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/debug.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/event.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/flag/flags.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/log-materializers.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/logger.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/observer.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/propagation.go (93%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/propagation_ot.go (81%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/raw.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/recorder.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/sample.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/span.go (98%)
 create mode 100644 vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/GoUnusedProtection__.go
 rename vendor/github.com/{openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/constants.go => openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe-consts.go} (70%)
 create mode 100644 vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go
 create mode 100644 vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/GoUnusedProtection__.go
 rename vendor/github.com/{openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/constants.go => openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore-consts.go} (88%)
 create mode 100644 vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore.go
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/tracer.go (99%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/types/traceid.go (83%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/util.go (100%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/wire/carrier.go (93%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/wire/gen.go (53%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/wire/wire.pb.go (88%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/zipkin-endpoint.go (95%)
 rename vendor/github.com/{openzipkin => openzipkin-contrib}/zipkin-go-opentracing/zipkin-recorder.go (73%)
 delete mode 100644 vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go
 delete mode 100644 vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/ttypes.go
 delete mode 100644 vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/ttypes.go
 create mode 100644 vendor/github.com/uber/jaeger-lib/metrics/histogram.go
 create mode 100644 vendor/github.com/uber/jaeger-lib/metrics/keys.go
 delete mode 100644 vendor/github.com/uber/jaeger-lib/metrics/local.go

diff --git a/Gopkg.lock b/Gopkg.lock
index 2828ad0d6..3752a6530 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -184,12 +184,12 @@
   version = "v1.0.1"
 
 [[projects]]
-  digest = "1:9752dad5e89cd779096bf2477a4ded16bea7ac62de453c8d6b4bf841d51a8512"
+  digest = "1:b39cf81d5f440b9c0757a25058432d33af867e5201109bf53621356d9dab4b73"
   name = "github.com/apache/thrift"
   packages = ["lib/go/thrift"]
   pruneopts = "NUT"
-  revision = "b2a4d4ae21c789b689dd162deb819665567f481c"
-  version = "0.10.0"
+  revision = "384647d290e2e4a55a14b1b7ef1b7e66293a2c33"
+  version = "v0.12.0"
 
 [[projects]]
   branch = "master"
@@ -1243,7 +1243,7 @@
   version = "v1.0.0"
 
 [[projects]]
-  digest = "1:7da29c22bcc5c2ffb308324377dc00b5084650348c2799e573ed226d8cc9faf0"
+  digest = "1:6846140b3f116579680eefdc17145f2bcf064b68deb9febf86b4419a454049af"
   name = "github.com/opentracing/opentracing-go"
   packages = [
     ".",
@@ -1251,12 +1251,12 @@
     "log",
   ]
   pruneopts = "NUT"
-  revision = "1949ddbfd147afd4d964a9f00b24eb291e0e7c38"
-  version = "v1.0.2"
+  revision = "659c90643e714681897ec2521c60567dd21da733"
+  version = "v1.1.0"
 
 [[projects]]
-  digest = "1:07c44a0ce6012eafd2f05b715d30852d576aeda7798b8760a2ff51b1e90eb753"
-  name = "github.com/openzipkin/zipkin-go-opentracing"
+  digest = "1:0f4793617dc898d3ee99fe1abab076d3976a9d17d14f8327af2dc3f1ec0fd92c"
+  name = "github.com/openzipkin-contrib/zipkin-go-opentracing"
   packages = [
     ".",
     "flag",
@@ -1266,7 +1266,8 @@
     "wire",
   ]
   pruneopts = "NUT"
-  revision = "1f5c07e90700ae93ddcba0c7af7d9c7201646ccc"
+  revision = "f0f479ad013a498e4cbfb369414e5d3880903779"
+  version = "v0.3.5"
 
 [[projects]]
   digest = "1:b52f6b7059f06a11ab6ab039714dda0d93878d9227f84c84ca9b6f046bfb5fef"
@@ -1507,7 +1508,7 @@
   revision = "1dc93a7db3567a5ccf865106afac88278ba940cf"
 
 [[projects]]
-  digest = "1:7d3a890e525da3b7014d26dd1d4a0e4d31a479995007cd11989ad31db132e66c"
+  digest = "1:dc5b63bdf6fd3b22c970e06ad4fb686f6d08104f50f414644d5ac5e267a7934a"
   name = "github.com/uber/jaeger-client-go"
   packages = [
     ".",
@@ -1530,16 +1531,18 @@
     "zipkin",
   ]
   pruneopts = "NUT"
-  revision = "1a782e2da844727691fef1757c72eb190c2909f0"
-  version = "v2.15.0"
+  revision = "2f47546e3facd43297739439600bcf43f44cce5d"
+  source = "github.com/jaegertracing/jaeger-client-go"
+  version = "v2.16.0"
 
 [[projects]]
-  digest = "1:0f09db8429e19d57c8346ad76fbbc679341fa86073d3b8fb5ac919f0357d8f4c"
+  digest = "1:c9d69a04f7fa171f50360bbcc32196b4de8ab8837ef772f6302d0140a1e3e7f6"
   name = "github.com/uber/jaeger-lib"
   packages = ["metrics"]
   pruneopts = "NUT"
-  revision = "ed3a127ec5fef7ae9ea95b01b542c47fbd999ce5"
-  version = "v1.5.0"
+  revision = "0e30338a695636fe5bcf7301e8030ce8dd2a8530"
+  source = "github.com/jaegertracing/jaeger-lib"
+  version = "v2.0.0"
 
 [[projects]]
   digest = "1:fb6d90081ae53fdb35d0fffa7d82a555df936bbc6db9a93126795655b2317604"
@@ -2220,7 +2223,7 @@
     "github.com/opentracing/opentracing-go",
     "github.com/opentracing/opentracing-go/ext",
     "github.com/opentracing/opentracing-go/log",
-    "github.com/openzipkin/zipkin-go-opentracing",
+    "github.com/openzipkin-contrib/zipkin-go-opentracing",
     "github.com/patrickmn/go-cache",
     "github.com/prometheus/client_golang/prometheus",
     "github.com/prometheus/client_golang/prometheus/promhttp",
diff --git a/Gopkg.toml b/Gopkg.toml
index c9edf5a86..fa40356da 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -172,11 +172,13 @@ required = [
 
 [[constraint]]
   name = "github.com/uber/jaeger-client-go"
-  version = "2.15.0"
+  source = "github.com/jaegertracing/jaeger-client-go"
+  version = "2.16.0"
 
 [[constraint]]
   name = "github.com/uber/jaeger-lib"
-  version = "1.3.0"
+  source = "github.com/jaegertracing/jaeger-lib"
+  version = "2.0.0"
 
 [[constraint]]
   branch = "v1"
diff --git a/integration/resources/compose/tracing.yml b/integration/resources/compose/tracing.yml
index 0d07fb24b..05bfd4488 100644
--- a/integration/resources/compose/tracing.yml
+++ b/integration/resources/compose/tracing.yml
@@ -1,7 +1,5 @@
 zipkin:
-  # Fix zipkin version 2.4.2
-  # due to a bug in latest version https://github.com/openzipkin/zipkin/releases/tag/2.4.4
-  image: openzipkin/zipkin:2.4.2
+  image: openzipkin/zipkin:2.12.6
   environment:
     STORAGE_TYPE: mem
     JAVA_OPTS: -Dlogging.level.zipkin=DEBUG
diff --git a/pkg/tracing/zipkin/zipkin.go b/pkg/tracing/zipkin/zipkin.go
index 84d776b5a..91da920ea 100644
--- a/pkg/tracing/zipkin/zipkin.go
+++ b/pkg/tracing/zipkin/zipkin.go
@@ -6,7 +6,7 @@ import (
 
 	"github.com/containous/traefik/pkg/log"
 	"github.com/opentracing/opentracing-go"
-	zipkin "github.com/openzipkin/zipkin-go-opentracing"
+	zipkin "github.com/openzipkin-contrib/zipkin-go-opentracing"
 )
 
 // Name sets the name of this tracer.
diff --git a/vendor/github.com/apache/thrift/NOTICE b/vendor/github.com/apache/thrift/NOTICE
index c23995a23..902dc8d31 100644
--- a/vendor/github.com/apache/thrift/NOTICE
+++ b/vendor/github.com/apache/thrift/NOTICE
@@ -1,5 +1,5 @@
 Apache Thrift
-Copyright 2006-2010 The Apache Software Foundation.
+Copyright 2006-2017 The Apache Software Foundation.
 
 This product includes software developed at
-The Apache Software Foundation (http://www.apache.org/).
\ No newline at end of file
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/application_exception.go b/vendor/github.com/apache/thrift/lib/go/thrift/application_exception.go
index 6655cc5a9..b9d7eedcd 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/application_exception.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/application_exception.go
@@ -30,11 +30,22 @@ const (
 	PROTOCOL_ERROR                 = 7
 )
 
+var defaultApplicationExceptionMessage = map[int32]string{
+	UNKNOWN_APPLICATION_EXCEPTION:  "unknown application exception",
+	UNKNOWN_METHOD:                 "unknown method",
+	INVALID_MESSAGE_TYPE_EXCEPTION: "invalid message type",
+	WRONG_METHOD_NAME:              "wrong method name",
+	BAD_SEQUENCE_ID:                "bad sequence ID",
+	MISSING_RESULT:                 "missing result",
+	INTERNAL_ERROR:                 "unknown internal error",
+	PROTOCOL_ERROR:                 "unknown protocol error",
+}
+
 // Application level Thrift exception
 type TApplicationException interface {
 	TException
 	TypeId() int32
-	Read(iprot TProtocol) (TApplicationException, error)
+	Read(iprot TProtocol) error
 	Write(oprot TProtocol) error
 }
 
@@ -44,7 +55,10 @@ type tApplicationException struct {
 }
 
 func (e tApplicationException) Error() string {
-	return e.message
+	if e.message != "" {
+		return e.message
+	}
+	return defaultApplicationExceptionMessage[e.type_]
 }
 
 func NewTApplicationException(type_ int32, message string) TApplicationException {
@@ -55,10 +69,11 @@ func (p *tApplicationException) TypeId() int32 {
 	return p.type_
 }
 
-func (p *tApplicationException) Read(iprot TProtocol) (TApplicationException, error) {
+func (p *tApplicationException) Read(iprot TProtocol) error {
+	// TODO: this should really be generated by the compiler
 	_, err := iprot.ReadStructBegin()
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	message := ""
@@ -67,7 +82,7 @@ func (p *tApplicationException) Read(iprot TProtocol) (TApplicationException, er
 	for {
 		_, ttype, id, err := iprot.ReadFieldBegin()
 		if err != nil {
-			return nil, err
+			return err
 		}
 		if ttype == STOP {
 			break
@@ -76,33 +91,40 @@ func (p *tApplicationException) Read(iprot TProtocol) (TApplicationException, er
 		case 1:
 			if ttype == STRING {
 				if message, err = iprot.ReadString(); err != nil {
-					return nil, err
+					return err
 				}
 			} else {
 				if err = SkipDefaultDepth(iprot, ttype); err != nil {
-					return nil, err
+					return err
 				}
 			}
 		case 2:
 			if ttype == I32 {
 				if type_, err = iprot.ReadI32(); err != nil {
-					return nil, err
+					return err
 				}
 			} else {
 				if err = SkipDefaultDepth(iprot, ttype); err != nil {
-					return nil, err
+					return err
 				}
 			}
 		default:
 			if err = SkipDefaultDepth(iprot, ttype); err != nil {
-				return nil, err
+				return err
 			}
 		}
 		if err = iprot.ReadFieldEnd(); err != nil {
-			return nil, err
+			return err
 		}
 	}
-	return NewTApplicationException(type_, message), iprot.ReadStructEnd()
+	if err := iprot.ReadStructEnd(); err != nil {
+		return err
+	}
+
+	p.message = message
+	p.type_ = type_
+
+	return nil
 }
 
 func (p *tApplicationException) Write(oprot TProtocol) (err error) {
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/binary_protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/binary_protocol.go
index 690d34111..1f90bf435 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/binary_protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/binary_protocol.go
@@ -21,6 +21,7 @@ package thrift
 
 import (
 	"bytes"
+	"context"
 	"encoding/binary"
 	"errors"
 	"fmt"
@@ -447,9 +448,6 @@ func (p *TBinaryProtocol) ReadBinary() ([]byte, error) {
 	if size < 0 {
 		return nil, invalidDataLength
 	}
-	if uint64(size) > p.trans.RemainingBytes() {
-		return nil, invalidDataLength
-	}
 
 	isize := int(size)
 	buf := make([]byte, isize)
@@ -457,8 +455,8 @@ func (p *TBinaryProtocol) ReadBinary() ([]byte, error) {
 	return buf, NewTProtocolException(err)
 }
 
-func (p *TBinaryProtocol) Flush() (err error) {
-	return NewTProtocolException(p.trans.Flush())
+func (p *TBinaryProtocol) Flush(ctx context.Context) (err error) {
+	return NewTProtocolException(p.trans.Flush(ctx))
 }
 
 func (p *TBinaryProtocol) Skip(fieldType TType) (err error) {
@@ -480,9 +478,6 @@ func (p *TBinaryProtocol) readStringBody(size int32) (value string, err error) {
 	if size < 0 {
 		return "", nil
 	}
-	if uint64(size) > p.trans.RemainingBytes() {
-		return "", invalidDataLength
-	}
 
 	var (
 		buf bytes.Buffer
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/buffered_transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/buffered_transport.go
index f73a98b6c..96702061b 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/buffered_transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/buffered_transport.go
@@ -21,6 +21,7 @@ package thrift
 
 import (
 	"bufio"
+	"context"
 )
 
 type TBufferedTransportFactory struct {
@@ -32,8 +33,8 @@ type TBufferedTransport struct {
 	tp TTransport
 }
 
-func (p *TBufferedTransportFactory) GetTransport(trans TTransport) TTransport {
-	return NewTBufferedTransport(trans, p.size)
+func (p *TBufferedTransportFactory) GetTransport(trans TTransport) (TTransport, error) {
+	return NewTBufferedTransport(trans, p.size), nil
 }
 
 func NewTBufferedTransportFactory(bufferSize int) *TBufferedTransportFactory {
@@ -78,12 +79,12 @@ func (p *TBufferedTransport) Write(b []byte) (int, error) {
 	return n, err
 }
 
-func (p *TBufferedTransport) Flush() error {
+func (p *TBufferedTransport) Flush(ctx context.Context) error {
 	if err := p.ReadWriter.Flush(); err != nil {
 		p.ReadWriter.Writer.Reset(p.tp)
 		return err
 	}
-	return p.tp.Flush()
+	return p.tp.Flush(ctx)
 }
 
 func (p *TBufferedTransport) RemainingBytes() (num_bytes uint64) {
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/client.go b/vendor/github.com/apache/thrift/lib/go/thrift/client.go
new file mode 100644
index 000000000..28791ccd0
--- /dev/null
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/client.go
@@ -0,0 +1,85 @@
+package thrift
+
+import (
+	"context"
+	"fmt"
+)
+
+type TClient interface {
+	Call(ctx context.Context, method string, args, result TStruct) error
+}
+
+type TStandardClient struct {
+	seqId        int32
+	iprot, oprot TProtocol
+}
+
+// TStandardClient implements TClient, and uses the standard message format for Thrift.
+// It is not safe for concurrent use.
+func NewTStandardClient(inputProtocol, outputProtocol TProtocol) *TStandardClient {
+	return &TStandardClient{
+		iprot: inputProtocol,
+		oprot: outputProtocol,
+	}
+}
+
+func (p *TStandardClient) Send(ctx context.Context, oprot TProtocol, seqId int32, method string, args TStruct) error {
+	if err := oprot.WriteMessageBegin(method, CALL, seqId); err != nil {
+		return err
+	}
+	if err := args.Write(oprot); err != nil {
+		return err
+	}
+	if err := oprot.WriteMessageEnd(); err != nil {
+		return err
+	}
+	return oprot.Flush(ctx)
+}
+
+func (p *TStandardClient) Recv(iprot TProtocol, seqId int32, method string, result TStruct) error {
+	rMethod, rTypeId, rSeqId, err := iprot.ReadMessageBegin()
+	if err != nil {
+		return err
+	}
+
+	if method != rMethod {
+		return NewTApplicationException(WRONG_METHOD_NAME, fmt.Sprintf("%s: wrong method name", method))
+	} else if seqId != rSeqId {
+		return NewTApplicationException(BAD_SEQUENCE_ID, fmt.Sprintf("%s: out of order sequence response", method))
+	} else if rTypeId == EXCEPTION {
+		var exception tApplicationException
+		if err := exception.Read(iprot); err != nil {
+			return err
+		}
+
+		if err := iprot.ReadMessageEnd(); err != nil {
+			return err
+		}
+
+		return &exception
+	} else if rTypeId != REPLY {
+		return NewTApplicationException(INVALID_MESSAGE_TYPE_EXCEPTION, fmt.Sprintf("%s: invalid message type", method))
+	}
+
+	if err := result.Read(iprot); err != nil {
+		return err
+	}
+
+	return iprot.ReadMessageEnd()
+}
+
+func (p *TStandardClient) Call(ctx context.Context, method string, args, result TStruct) error {
+	p.seqId++
+	seqId := p.seqId
+
+	if err := p.Send(ctx, p.oprot, seqId, method, args); err != nil {
+		return err
+	}
+
+	// method is oneway
+	if result == nil {
+		return nil
+	}
+
+	return p.Recv(p.iprot, seqId, method, result)
+}
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/compact_protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/compact_protocol.go
index 0bc5fddeb..1900d50c3 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/compact_protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/compact_protocol.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"encoding/binary"
 	"fmt"
 	"io"
@@ -561,9 +562,6 @@ func (p *TCompactProtocol) ReadString() (value string, err error) {
 	if length < 0 {
 		return "", invalidDataLength
 	}
-	if uint64(length) > p.trans.RemainingBytes() {
-		return "", invalidDataLength
-	}
 
 	if length == 0 {
 		return "", nil
@@ -590,17 +588,14 @@ func (p *TCompactProtocol) ReadBinary() (value []byte, err error) {
 	if length < 0 {
 		return nil, invalidDataLength
 	}
-	if uint64(length) > p.trans.RemainingBytes() {
-		return nil, invalidDataLength
-	}
 
 	buf := make([]byte, length)
 	_, e = io.ReadFull(p.trans, buf)
 	return buf, NewTProtocolException(e)
 }
 
-func (p *TCompactProtocol) Flush() (err error) {
-	return NewTProtocolException(p.trans.Flush())
+func (p *TCompactProtocol) Flush(ctx context.Context) (err error) {
+	return NewTProtocolException(p.trans.Flush(ctx))
 }
 
 func (p *TCompactProtocol) Skip(fieldType TType) (err error) {
@@ -806,7 +801,7 @@ func (p *TCompactProtocol) getTType(t tCompactType) (TType, error) {
 	case COMPACT_STRUCT:
 		return STRUCT, nil
 	}
-	return STOP, TException(fmt.Errorf("don't know what type: %s", t&0x0f))
+	return STOP, TException(fmt.Errorf("don't know what type: %v", t&0x0f))
 }
 
 // Given a TType value, find the appropriate TCompactProtocol.Types constant.
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/processor.go b/vendor/github.com/apache/thrift/lib/go/thrift/context.go
similarity index 74%
rename from vendor/github.com/apache/thrift/lib/go/thrift/processor.go
rename to vendor/github.com/apache/thrift/lib/go/thrift/context.go
index ca0d3faf2..d15c1bcf8 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/processor.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/context.go
@@ -19,12 +19,6 @@
 
 package thrift
 
-// A processor is a generic object which operates upon an input stream and
-// writes to some output stream.
-type TProcessor interface {
-	Process(in, out TProtocol) (bool, TException)
-}
+import "context"
 
-type TProcessorFunction interface {
-	Process(seqId int32, in, out TProtocol) (bool, TException)
-}
+var defaultCtx = context.Background()
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/debug_protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/debug_protocol.go
index d37252cc6..57943e0f3 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/debug_protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/debug_protocol.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"log"
 )
 
@@ -258,8 +259,8 @@ func (tdp *TDebugProtocol) Skip(fieldType TType) (err error) {
 	log.Printf("%sSkip(fieldType=%#v) (err=%#v)", tdp.LogPrefix, fieldType, err)
 	return
 }
-func (tdp *TDebugProtocol) Flush() (err error) {
-	err = tdp.Delegate.Flush()
+func (tdp *TDebugProtocol) Flush(ctx context.Context) (err error) {
+	err = tdp.Delegate.Flush(ctx)
 	log.Printf("%sFlush() (err=%#v)", tdp.LogPrefix, err)
 	return
 }
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/framed_transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/framed_transport.go
index d0bae21bc..81fa65aaa 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/framed_transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/framed_transport.go
@@ -22,6 +22,7 @@ package thrift
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"encoding/binary"
 	"fmt"
 	"io"
@@ -48,11 +49,15 @@ func NewTFramedTransportFactory(factory TTransportFactory) TTransportFactory {
 }
 
 func NewTFramedTransportFactoryMaxLength(factory TTransportFactory, maxLength uint32) TTransportFactory {
-        return &tFramedTransportFactory{factory: factory, maxLength: maxLength}
+	return &tFramedTransportFactory{factory: factory, maxLength: maxLength}
 }
 
-func (p *tFramedTransportFactory) GetTransport(base TTransport) TTransport {
-	return NewTFramedTransportMaxLength(p.factory.GetTransport(base), p.maxLength)
+func (p *tFramedTransportFactory) GetTransport(base TTransport) (TTransport, error) {
+	tt, err := p.factory.GetTransport(base)
+	if err != nil {
+		return nil, err
+	}
+	return NewTFramedTransportMaxLength(tt, p.maxLength), nil
 }
 
 func NewTFramedTransport(transport TTransport) *TFramedTransport {
@@ -131,21 +136,23 @@ func (p *TFramedTransport) WriteString(s string) (n int, err error) {
 	return p.buf.WriteString(s)
 }
 
-func (p *TFramedTransport) Flush() error {
+func (p *TFramedTransport) Flush(ctx context.Context) error {
 	size := p.buf.Len()
 	buf := p.buffer[:4]
 	binary.BigEndian.PutUint32(buf, uint32(size))
 	_, err := p.transport.Write(buf)
 	if err != nil {
+		p.buf.Truncate(0)
 		return NewTTransportExceptionFromError(err)
 	}
 	if size > 0 {
 		if n, err := p.buf.WriteTo(p.transport); err != nil {
 			print("Error while flushing write buffer of size ", size, " to transport, only wrote ", n, " bytes: ", err.Error(), "\n")
+			p.buf.Truncate(0)
 			return NewTTransportExceptionFromError(err)
 		}
 	}
-	err = p.transport.Flush()
+	err = p.transport.Flush(ctx)
 	return NewTTransportExceptionFromError(err)
 }
 
@@ -164,4 +171,3 @@ func (p *TFramedTransport) readFrameHeader() (uint32, error) {
 func (p *TFramedTransport) RemainingBytes() (num_bytes uint64) {
 	return uint64(p.frameSize)
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/http_client.go b/vendor/github.com/apache/thrift/lib/go/thrift/http_client.go
index 88eb2c128..5c82bf538 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/http_client.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/http_client.go
@@ -21,6 +21,7 @@ package thrift
 
 import (
 	"bytes"
+	"context"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -46,27 +47,16 @@ type THttpClient struct {
 type THttpClientTransportFactory struct {
 	options THttpClientOptions
 	url     string
-	isPost  bool
 }
 
-func (p *THttpClientTransportFactory) GetTransport(trans TTransport) TTransport {
+func (p *THttpClientTransportFactory) GetTransport(trans TTransport) (TTransport, error) {
 	if trans != nil {
 		t, ok := trans.(*THttpClient)
 		if ok && t.url != nil {
-			if t.requestBuffer != nil {
-				t2, _ := NewTHttpPostClientWithOptions(t.url.String(), p.options)
-				return t2
-			}
-			t2, _ := NewTHttpClientWithOptions(t.url.String(), p.options)
-			return t2
+			return NewTHttpClientWithOptions(t.url.String(), p.options)
 		}
 	}
-	if p.isPost {
-		s, _ := NewTHttpPostClientWithOptions(p.url, p.options)
-		return s
-	}
-	s, _ := NewTHttpClientWithOptions(p.url, p.options)
-	return s
+	return NewTHttpClientWithOptions(p.url, p.options)
 }
 
 type THttpClientOptions struct {
@@ -79,39 +69,10 @@ func NewTHttpClientTransportFactory(url string) *THttpClientTransportFactory {
 }
 
 func NewTHttpClientTransportFactoryWithOptions(url string, options THttpClientOptions) *THttpClientTransportFactory {
-	return &THttpClientTransportFactory{url: url, isPost: false, options: options}
-}
-
-func NewTHttpPostClientTransportFactory(url string) *THttpClientTransportFactory {
-	return NewTHttpPostClientTransportFactoryWithOptions(url, THttpClientOptions{})
-}
-
-func NewTHttpPostClientTransportFactoryWithOptions(url string, options THttpClientOptions) *THttpClientTransportFactory {
-	return &THttpClientTransportFactory{url: url, isPost: true, options: options}
+	return &THttpClientTransportFactory{url: url, options: options}
 }
 
 func NewTHttpClientWithOptions(urlstr string, options THttpClientOptions) (TTransport, error) {
-	parsedURL, err := url.Parse(urlstr)
-	if err != nil {
-		return nil, err
-	}
-	response, err := http.Get(urlstr)
-	if err != nil {
-		return nil, err
-	}
-	client := options.Client
-	if client == nil {
-		client = DefaultHttpClient
-	}
-	httpHeader := map[string][]string{"Content-Type": []string{"application/x-thrift"}}
-	return &THttpClient{client: client, response: response, url: parsedURL, header: httpHeader}, nil
-}
-
-func NewTHttpClient(urlstr string) (TTransport, error) {
-	return NewTHttpClientWithOptions(urlstr, THttpClientOptions{})
-}
-
-func NewTHttpPostClientWithOptions(urlstr string, options THttpClientOptions) (TTransport, error) {
 	parsedURL, err := url.Parse(urlstr)
 	if err != nil {
 		return nil, err
@@ -121,12 +82,12 @@ func NewTHttpPostClientWithOptions(urlstr string, options THttpClientOptions) (T
 	if client == nil {
 		client = DefaultHttpClient
 	}
-	httpHeader := map[string][]string{"Content-Type": []string{"application/x-thrift"}}
+	httpHeader := map[string][]string{"Content-Type": {"application/x-thrift"}}
 	return &THttpClient{client: client, url: parsedURL, requestBuffer: bytes.NewBuffer(buf), header: httpHeader}, nil
 }
 
-func NewTHttpPostClient(urlstr string) (TTransport, error) {
-	return NewTHttpPostClientWithOptions(urlstr, THttpClientOptions{})
+func NewTHttpClient(urlstr string) (TTransport, error) {
+	return NewTHttpClientWithOptions(urlstr, THttpClientOptions{})
 }
 
 // Set the HTTP Header for this specific Thrift Transport
@@ -221,7 +182,7 @@ func (p *THttpClient) WriteString(s string) (n int, err error) {
 	return p.requestBuffer.WriteString(s)
 }
 
-func (p *THttpClient) Flush() error {
+func (p *THttpClient) Flush(ctx context.Context) error {
 	// Close any previous response body to avoid leaking connections.
 	p.closeResponse()
 
@@ -230,6 +191,9 @@ func (p *THttpClient) Flush() error {
 		return NewTTransportExceptionFromError(err)
 	}
 	req.Header = p.header
+	if ctx != nil {
+		req = req.WithContext(ctx)
+	}
 	response, err := p.client.Do(req)
 	if err != nil {
 		return NewTTransportExceptionFromError(err)
@@ -256,3 +220,23 @@ func (p *THttpClient) RemainingBytes() (num_bytes uint64) {
 	const maxSize = ^uint64(0)
 	return maxSize // the thruth is, we just don't know unless framed is used
 }
+
+// Deprecated: Use NewTHttpClientTransportFactory instead.
+func NewTHttpPostClientTransportFactory(url string) *THttpClientTransportFactory {
+	return NewTHttpClientTransportFactoryWithOptions(url, THttpClientOptions{})
+}
+
+// Deprecated: Use NewTHttpClientTransportFactoryWithOptions instead.
+func NewTHttpPostClientTransportFactoryWithOptions(url string, options THttpClientOptions) *THttpClientTransportFactory {
+	return NewTHttpClientTransportFactoryWithOptions(url, options)
+}
+
+// Deprecated: Use NewTHttpClientWithOptions instead.
+func NewTHttpPostClientWithOptions(urlstr string, options THttpClientOptions) (TTransport, error) {
+	return NewTHttpClientWithOptions(urlstr, options)
+}
+
+// Deprecated: Use NewTHttpClient instead.
+func NewTHttpPostClient(urlstr string) (TTransport, error) {
+	return NewTHttpClientWithOptions(urlstr, THttpClientOptions{})
+}
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/http_transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/http_transport.go
index f6d7458db..66f0f388a 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/http_transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/http_transport.go
@@ -19,16 +19,45 @@
 
 package thrift
 
-import "net/http"
+import (
+	"compress/gzip"
+	"io"
+	"net/http"
+	"strings"
+)
 
 // NewThriftHandlerFunc is a function that create a ready to use Apache Thrift Handler function
 func NewThriftHandlerFunc(processor TProcessor,
 	inPfactory, outPfactory TProtocolFactory) func(w http.ResponseWriter, r *http.Request) {
 
-	return func(w http.ResponseWriter, r *http.Request) {
+	return gz(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Add("Content-Type", "application/x-thrift")
 
 		transport := NewStreamTransport(r.Body, w)
-		processor.Process(inPfactory.GetProtocol(transport), outPfactory.GetProtocol(transport))
+		processor.Process(r.Context(), inPfactory.GetProtocol(transport), outPfactory.GetProtocol(transport))
+	})
+}
+
+// gz transparently compresses the HTTP response if the client supports it.
+func gz(handler http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
+			handler(w, r)
+			return
+		}
+		w.Header().Set("Content-Encoding", "gzip")
+		gz := gzip.NewWriter(w)
+		defer gz.Close()
+		gzw := gzipResponseWriter{Writer: gz, ResponseWriter: w}
+		handler(gzw, r)
 	}
 }
+
+type gzipResponseWriter struct {
+	io.Writer
+	http.ResponseWriter
+}
+
+func (w gzipResponseWriter) Write(b []byte) (int, error) {
+	return w.Writer.Write(b)
+}
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/iostream_transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/iostream_transport.go
index 794872ff1..fea93bcef 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/iostream_transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/iostream_transport.go
@@ -21,6 +21,7 @@ package thrift
 
 import (
 	"bufio"
+	"context"
 	"io"
 )
 
@@ -38,38 +39,38 @@ type StreamTransportFactory struct {
 	isReadWriter bool
 }
 
-func (p *StreamTransportFactory) GetTransport(trans TTransport) TTransport {
+func (p *StreamTransportFactory) GetTransport(trans TTransport) (TTransport, error) {
 	if trans != nil {
 		t, ok := trans.(*StreamTransport)
 		if ok {
 			if t.isReadWriter {
-				return NewStreamTransportRW(t.Reader.(io.ReadWriter))
+				return NewStreamTransportRW(t.Reader.(io.ReadWriter)), nil
 			}
 			if t.Reader != nil && t.Writer != nil {
-				return NewStreamTransport(t.Reader, t.Writer)
+				return NewStreamTransport(t.Reader, t.Writer), nil
 			}
 			if t.Reader != nil && t.Writer == nil {
-				return NewStreamTransportR(t.Reader)
+				return NewStreamTransportR(t.Reader), nil
 			}
 			if t.Reader == nil && t.Writer != nil {
-				return NewStreamTransportW(t.Writer)
+				return NewStreamTransportW(t.Writer), nil
 			}
-			return &StreamTransport{}
+			return &StreamTransport{}, nil
 		}
 	}
 	if p.isReadWriter {
-		return NewStreamTransportRW(p.Reader.(io.ReadWriter))
+		return NewStreamTransportRW(p.Reader.(io.ReadWriter)), nil
 	}
 	if p.Reader != nil && p.Writer != nil {
-		return NewStreamTransport(p.Reader, p.Writer)
+		return NewStreamTransport(p.Reader, p.Writer), nil
 	}
 	if p.Reader != nil && p.Writer == nil {
-		return NewStreamTransportR(p.Reader)
+		return NewStreamTransportR(p.Reader), nil
 	}
 	if p.Reader == nil && p.Writer != nil {
-		return NewStreamTransportW(p.Writer)
+		return NewStreamTransportW(p.Writer), nil
 	}
-	return &StreamTransport{}
+	return &StreamTransport{}, nil
 }
 
 func NewStreamTransportFactory(reader io.Reader, writer io.Writer, isReadWriter bool) *StreamTransportFactory {
@@ -138,7 +139,7 @@ func (p *StreamTransport) Close() error {
 }
 
 // Flushes the underlying output stream if not null.
-func (p *StreamTransport) Flush() error {
+func (p *StreamTransport) Flush(ctx context.Context) error {
 	if p.Writer == nil {
 		return NewTTransportException(NOT_OPEN, "Cannot flush null outputStream")
 	}
@@ -209,6 +210,5 @@ func (p *StreamTransport) WriteString(s string) (n int, err error) {
 
 func (p *StreamTransport) RemainingBytes() (num_bytes uint64) {
 	const maxSize = ^uint64(0)
-	return maxSize  // the thruth is, we just don't know unless framed is used
+	return maxSize // the thruth is, we just don't know unless framed is used
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/json_protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/json_protocol.go
index 442fa9144..7be685d43 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/json_protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/json_protocol.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"encoding/base64"
 	"fmt"
 )
@@ -438,10 +439,10 @@ func (p *TJSONProtocol) ReadBinary() ([]byte, error) {
 	return v, p.ParsePostValue()
 }
 
-func (p *TJSONProtocol) Flush() (err error) {
+func (p *TJSONProtocol) Flush(ctx context.Context) (err error) {
 	err = p.writer.Flush()
 	if err == nil {
-		err = p.trans.Flush()
+		err = p.trans.Flush(ctx)
 	}
 	return NewTProtocolException(err)
 }
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/memory_buffer.go b/vendor/github.com/apache/thrift/lib/go/thrift/memory_buffer.go
index b62fd56f0..5936d2730 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/memory_buffer.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/memory_buffer.go
@@ -21,6 +21,7 @@ package thrift
 
 import (
 	"bytes"
+	"context"
 )
 
 // Memory buffer-based implementation of the TTransport interface.
@@ -33,14 +34,14 @@ type TMemoryBufferTransportFactory struct {
 	size int
 }
 
-func (p *TMemoryBufferTransportFactory) GetTransport(trans TTransport) TTransport {
+func (p *TMemoryBufferTransportFactory) GetTransport(trans TTransport) (TTransport, error) {
 	if trans != nil {
 		t, ok := trans.(*TMemoryBuffer)
 		if ok && t.size > 0 {
-			return NewTMemoryBufferLen(t.size)
+			return NewTMemoryBufferLen(t.size), nil
 		}
 	}
-	return NewTMemoryBufferLen(p.size)
+	return NewTMemoryBufferLen(p.size), nil
 }
 
 func NewTMemoryBufferTransportFactory(size int) *TMemoryBufferTransportFactory {
@@ -70,7 +71,7 @@ func (p *TMemoryBuffer) Close() error {
 }
 
 // Flushing a memory buffer is a no-op
-func (p *TMemoryBuffer) Flush() error {
+func (p *TMemoryBuffer) Flush(ctx context.Context) error {
 	return nil
 }
 
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/multiplexed_protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/multiplexed_protocol.go
index 3157e0d5d..d028a30b3 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/multiplexed_protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/multiplexed_protocol.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"fmt"
 	"strings"
 )
@@ -127,7 +128,7 @@ func (t *TMultiplexedProcessor) RegisterProcessor(name string, processor TProces
 	t.serviceProcessorMap[name] = processor
 }
 
-func (t *TMultiplexedProcessor) Process(in, out TProtocol) (bool, TException) {
+func (t *TMultiplexedProcessor) Process(ctx context.Context, in, out TProtocol) (bool, TException) {
 	name, typeId, seqid, err := in.ReadMessageBegin()
 	if err != nil {
 		return false, err
@@ -140,7 +141,7 @@ func (t *TMultiplexedProcessor) Process(in, out TProtocol) (bool, TException) {
 	if len(v) != 2 {
 		if t.DefaultProcessor != nil {
 			smb := NewStoredMessageProtocol(in, name, typeId, seqid)
-			return t.DefaultProcessor.Process(smb, out)
+			return t.DefaultProcessor.Process(ctx, smb, out)
 		}
 		return false, fmt.Errorf("Service name not found in message name: %s.  Did you forget to use a TMultiplexProtocol in your client?", name)
 	}
@@ -149,7 +150,7 @@ func (t *TMultiplexedProcessor) Process(in, out TProtocol) (bool, TException) {
 		return false, fmt.Errorf("Service name not found: %s.  Did you forget to call registerProcessor()?", v[0])
 	}
 	smb := NewStoredMessageProtocol(in, v[1], typeId, seqid)
-	return actualProcessor.Process(smb, out)
+	return actualProcessor.Process(ctx, smb, out)
 }
 
 //Protocol that use stored message for ReadMessageBegin
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/processor_factory.go b/vendor/github.com/apache/thrift/lib/go/thrift/processor_factory.go
index 9d645df24..e4b132b30 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/processor_factory.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/processor_factory.go
@@ -19,6 +19,18 @@
 
 package thrift
 
+import "context"
+
+// A processor is a generic object which operates upon an input stream and
+// writes to some output stream.
+type TProcessor interface {
+	Process(ctx context.Context, in, out TProtocol) (bool, TException)
+}
+
+type TProcessorFunction interface {
+	Process(ctx context.Context, seqId int32, in, out TProtocol) (bool, TException)
+}
+
 // The default processor factory just returns a singleton
 // instance.
 type TProcessorFactory interface {
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/protocol.go
index 45fa202e7..615b7a4a8 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/protocol.go
@@ -20,7 +20,9 @@
 package thrift
 
 import (
+	"context"
 	"errors"
+	"fmt"
 )
 
 const (
@@ -73,7 +75,7 @@ type TProtocol interface {
 	ReadBinary() (value []byte, err error)
 
 	Skip(fieldType TType) (err error)
-	Flush() (err error)
+	Flush(ctx context.Context) (err error)
 
 	Transport() TTransport
 }
@@ -88,9 +90,9 @@ func SkipDefaultDepth(prot TProtocol, typeId TType) (err error) {
 
 // Skips over the next data element from the provided input TProtocol object.
 func Skip(self TProtocol, fieldType TType, maxDepth int) (err error) {
-	
-    if maxDepth <= 0 {
-		return NewTProtocolExceptionWithType( DEPTH_LIMIT, errors.New("Depth limit exceeded"))
+
+	if maxDepth <= 0 {
+		return NewTProtocolExceptionWithType(DEPTH_LIMIT, errors.New("Depth limit exceeded"))
 	}
 
 	switch fieldType {
@@ -170,6 +172,8 @@ func Skip(self TProtocol, fieldType TType, maxDepth int) (err error) {
 			}
 		}
 		return self.ReadListEnd()
+	default:
+		return NewTProtocolExceptionWithType(INVALID_DATA, errors.New(fmt.Sprintf("Unknown data type %d", fieldType)))
 	}
 	return nil
 }
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/protocol_exception.go b/vendor/github.com/apache/thrift/lib/go/thrift/protocol_exception.go
index 6e357ee89..29ab75d92 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/protocol_exception.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/protocol_exception.go
@@ -60,7 +60,7 @@ func NewTProtocolException(err error) TProtocolException {
 	if err == nil {
 		return nil
 	}
-	if e,ok := err.(TProtocolException); ok {
+	if e, ok := err.(TProtocolException); ok {
 		return e
 	}
 	if _, ok := err.(base64.CorruptInputError); ok {
@@ -75,4 +75,3 @@ func NewTProtocolExceptionWithType(errType int, err error) TProtocolException {
 	}
 	return &tProtocolException{errType, err.Error()}
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/rich_transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/rich_transport.go
index 8e296a99b..4025bebea 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/rich_transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/rich_transport.go
@@ -66,4 +66,3 @@ func writeByte(w io.Writer, c byte) error {
 	_, err := w.Write(v[0:1])
 	return err
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/serializer.go b/vendor/github.com/apache/thrift/lib/go/thrift/serializer.go
index 771222999..1ff4d3754 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/serializer.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/serializer.go
@@ -19,6 +19,10 @@
 
 package thrift
 
+import (
+	"context"
+)
+
 type TSerializer struct {
 	Transport *TMemoryBuffer
 	Protocol  TProtocol
@@ -38,35 +42,35 @@ func NewTSerializer() *TSerializer {
 		protocol}
 }
 
-func (t *TSerializer) WriteString(msg TStruct) (s string, err error) {
+func (t *TSerializer) WriteString(ctx context.Context, msg TStruct) (s string, err error) {
 	t.Transport.Reset()
 
 	if err = msg.Write(t.Protocol); err != nil {
 		return
 	}
 
-	if err = t.Protocol.Flush(); err != nil {
+	if err = t.Protocol.Flush(ctx); err != nil {
 		return
 	}
-	if err = t.Transport.Flush(); err != nil {
+	if err = t.Transport.Flush(ctx); err != nil {
 		return
 	}
 
 	return t.Transport.String(), nil
 }
 
-func (t *TSerializer) Write(msg TStruct) (b []byte, err error) {
+func (t *TSerializer) Write(ctx context.Context, msg TStruct) (b []byte, err error) {
 	t.Transport.Reset()
 
 	if err = msg.Write(t.Protocol); err != nil {
 		return
 	}
 
-	if err = t.Protocol.Flush(); err != nil {
+	if err = t.Protocol.Flush(ctx); err != nil {
 		return
 	}
 
-	if err = t.Transport.Flush(); err != nil {
+	if err = t.Transport.Flush(ctx); err != nil {
 		return
 	}
 
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/server_socket.go b/vendor/github.com/apache/thrift/lib/go/thrift/server_socket.go
index d6e9495d2..7dd24ae36 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/server_socket.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/server_socket.go
@@ -47,7 +47,14 @@ func NewTServerSocketTimeout(listenAddr string, clientTimeout time.Duration) (*T
 	return &TServerSocket{addr: addr, clientTimeout: clientTimeout}, nil
 }
 
+// Creates a TServerSocket from a net.Addr
+func NewTServerSocketFromAddrTimeout(addr net.Addr, clientTimeout time.Duration) *TServerSocket {
+	return &TServerSocket{addr: addr, clientTimeout: clientTimeout}
+}
+
 func (p *TServerSocket) Listen() error {
+	p.mu.Lock()
+	defer p.mu.Unlock()
 	if p.IsListening() {
 		return nil
 	}
@@ -67,10 +74,15 @@ func (p *TServerSocket) Accept() (TTransport, error) {
 	if interrupted {
 		return nil, errTransportInterrupted
 	}
-	if p.listener == nil {
+
+	p.mu.Lock()
+	listener := p.listener
+	p.mu.Unlock()
+	if listener == nil {
 		return nil, NewTTransportException(NOT_OPEN, "No underlying server socket")
 	}
-	conn, err := p.listener.Accept()
+
+	conn, err := listener.Accept()
 	if err != nil {
 		return nil, NewTTransportExceptionFromError(err)
 	}
@@ -84,6 +96,8 @@ func (p *TServerSocket) IsListening() bool {
 
 // Connects the socket, creating a new socket object if necessary.
 func (p *TServerSocket) Open() error {
+	p.mu.Lock()
+	defer p.mu.Unlock()
 	if p.IsListening() {
 		return NewTTransportException(ALREADY_OPEN, "Server socket already open")
 	}
@@ -103,20 +117,21 @@ func (p *TServerSocket) Addr() net.Addr {
 }
 
 func (p *TServerSocket) Close() error {
-	defer func() {
-		p.listener = nil
-	}()
+	var err error
+	p.mu.Lock()
 	if p.IsListening() {
-		return p.listener.Close()
+		err = p.listener.Close()
+		p.listener = nil
 	}
-	return nil
+	p.mu.Unlock()
+	return err
 }
 
 func (p *TServerSocket) Interrupt() error {
 	p.mu.Lock()
 	p.interrupted = true
-	p.Close()
 	p.mu.Unlock()
+	p.Close()
 
 	return nil
 }
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/simple_json_protocol.go b/vendor/github.com/apache/thrift/lib/go/thrift/simple_json_protocol.go
index 735332231..2e8a71112 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/simple_json_protocol.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/simple_json_protocol.go
@@ -22,6 +22,7 @@ package thrift
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
@@ -552,7 +553,7 @@ func (p *TSimpleJSONProtocol) ReadBinary() ([]byte, error) {
 	return v, p.ParsePostValue()
 }
 
-func (p *TSimpleJSONProtocol) Flush() (err error) {
+func (p *TSimpleJSONProtocol) Flush(ctx context.Context) (err error) {
 	return NewTProtocolException(p.writer.Flush())
 }
 
@@ -1064,7 +1065,7 @@ func (p *TSimpleJSONProtocol) ParseListEnd() error {
 	for _, char := range line {
 		switch char {
 		default:
-			e := fmt.Errorf("Expecting end of list \"]\", but found: \"", line, "\"")
+			e := fmt.Errorf("Expecting end of list \"]\", but found: \"%v\"", line)
 			return NewTProtocolExceptionWithType(INVALID_DATA, e)
 		case ' ', '\n', '\r', '\t', rune(JSON_RBRACKET[0]):
 			break
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/simple_server.go b/vendor/github.com/apache/thrift/lib/go/thrift/simple_server.go
index 4097c4aea..603580251 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/simple_server.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/simple_server.go
@@ -23,11 +23,18 @@ import (
 	"log"
 	"runtime/debug"
 	"sync"
+	"sync/atomic"
 )
 
-// Simple, non-concurrent server for testing.
+/*
+ * This is not a typical TSimpleServer as it is not blocked after accept a socket.
+ * It is more like a TThreadedServer that can handle different connections in different goroutines.
+ * This will work if golang user implements a conn-pool like thing in client side.
+ */
 type TSimpleServer struct {
-	quit chan struct{}
+	closed int32
+	wg     sync.WaitGroup
+	mu     sync.Mutex
 
 	processorFactory       TProcessorFactory
 	serverTransport        TServerTransport
@@ -87,7 +94,6 @@ func NewTSimpleServerFactory6(processorFactory TProcessorFactory, serverTranspor
 		outputTransportFactory: outputTransportFactory,
 		inputProtocolFactory:   inputProtocolFactory,
 		outputProtocolFactory:  outputProtocolFactory,
-		quit: make(chan struct{}, 1),
 	}
 }
 
@@ -119,23 +125,37 @@ func (p *TSimpleServer) Listen() error {
 	return p.serverTransport.Listen()
 }
 
+func (p *TSimpleServer) innerAccept() (int32, error) {
+	client, err := p.serverTransport.Accept()
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	closed := atomic.LoadInt32(&p.closed)
+	if closed != 0 {
+		return closed, nil
+	}
+	if err != nil {
+		return 0, err
+	}
+	if client != nil {
+		p.wg.Add(1)
+		go func() {
+			defer p.wg.Done()
+			if err := p.processRequests(client); err != nil {
+				log.Println("error processing request:", err)
+			}
+		}()
+	}
+	return 0, nil
+}
+
 func (p *TSimpleServer) AcceptLoop() error {
 	for {
-		client, err := p.serverTransport.Accept()
+		closed, err := p.innerAccept()
 		if err != nil {
-			select {
-			case <-p.quit:
-				return nil
-			default:
-			}
 			return err
 		}
-		if client != nil {
-			go func() {
-				if err := p.processRequests(client); err != nil {
-					log.Println("error processing request:", err)
-				}
-			}()
+		if closed != 0 {
+			return nil
 		}
 	}
 }
@@ -149,21 +169,28 @@ func (p *TSimpleServer) Serve() error {
 	return nil
 }
 
-var once sync.Once
-
 func (p *TSimpleServer) Stop() error {
-	q := func() {
-		p.quit <- struct{}{}
-		p.serverTransport.Interrupt()
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	if atomic.LoadInt32(&p.closed) != 0 {
+		return nil
 	}
-	once.Do(q)
+	atomic.StoreInt32(&p.closed, 1)
+	p.serverTransport.Interrupt()
+	p.wg.Wait()
 	return nil
 }
 
 func (p *TSimpleServer) processRequests(client TTransport) error {
 	processor := p.processorFactory.GetProcessor(client)
-	inputTransport := p.inputTransportFactory.GetTransport(client)
-	outputTransport := p.outputTransportFactory.GetTransport(client)
+	inputTransport, err := p.inputTransportFactory.GetTransport(client)
+	if err != nil {
+		return err
+	}
+	outputTransport, err := p.outputTransportFactory.GetTransport(client)
+	if err != nil {
+		return err
+	}
 	inputProtocol := p.inputProtocolFactory.GetProtocol(inputTransport)
 	outputProtocol := p.outputProtocolFactory.GetProtocol(outputTransport)
 	defer func() {
@@ -171,6 +198,7 @@ func (p *TSimpleServer) processRequests(client TTransport) error {
 			log.Printf("panic in processor: %s: %s", e, debug.Stack())
 		}
 	}()
+
 	if inputTransport != nil {
 		defer inputTransport.Close()
 	}
@@ -178,17 +206,20 @@ func (p *TSimpleServer) processRequests(client TTransport) error {
 		defer outputTransport.Close()
 	}
 	for {
-		ok, err := processor.Process(inputProtocol, outputProtocol)
+		if atomic.LoadInt32(&p.closed) != 0 {
+			return nil
+		}
+
+		ok, err := processor.Process(defaultCtx, inputProtocol, outputProtocol)
 		if err, ok := err.(TTransportException); ok && err.TypeId() == END_OF_FILE {
 			return nil
 		} else if err != nil {
-			log.Printf("error processing request: %s", err)
 			return err
 		}
 		if err, ok := err.(TApplicationException); ok && err.TypeId() == UNKNOWN_METHOD {
 			continue
 		}
- 		if !ok {
+		if !ok {
 			break
 		}
 	}
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/socket.go b/vendor/github.com/apache/thrift/lib/go/thrift/socket.go
index 82e28b4b1..885427965 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/socket.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/socket.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"net"
 	"time"
 )
@@ -148,7 +149,7 @@ func (p *TSocket) Write(buf []byte) (int, error) {
 	return p.conn.Write(buf)
 }
 
-func (p *TSocket) Flush() error {
+func (p *TSocket) Flush(ctx context.Context) error {
 	return nil
 }
 
@@ -161,6 +162,5 @@ func (p *TSocket) Interrupt() error {
 
 func (p *TSocket) RemainingBytes() (num_bytes uint64) {
 	const maxSize = ^uint64(0)
-	return maxSize  // the thruth is, we just don't know unless framed is used
+	return maxSize // the thruth is, we just don't know unless framed is used
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/ssl_server_socket.go b/vendor/github.com/apache/thrift/lib/go/thrift/ssl_server_socket.go
index 58f859b0e..907afca32 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/ssl_server_socket.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/ssl_server_socket.go
@@ -20,9 +20,9 @@
 package thrift
 
 import (
+	"crypto/tls"
 	"net"
 	"time"
-	"crypto/tls"
 )
 
 type TSSLServerSocket struct {
@@ -38,6 +38,9 @@ func NewTSSLServerSocket(listenAddr string, cfg *tls.Config) (*TSSLServerSocket,
 }
 
 func NewTSSLServerSocketTimeout(listenAddr string, cfg *tls.Config, clientTimeout time.Duration) (*TSSLServerSocket, error) {
+	if cfg.MinVersion == 0 {
+		cfg.MinVersion = tls.VersionTLS10
+	}
 	addr, err := net.ResolveTCPAddr("tcp", listenAddr)
 	if err != nil {
 		return nil, err
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/ssl_socket.go b/vendor/github.com/apache/thrift/lib/go/thrift/ssl_socket.go
index 04d385085..ba6337726 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/ssl_socket.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/ssl_socket.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"crypto/tls"
 	"net"
 	"time"
@@ -48,6 +49,9 @@ func NewTSSLSocket(hostPort string, cfg *tls.Config) (*TSSLSocket, error) {
 // NewTSSLSocketTimeout creates a net.Conn-backed TTransport, given a host and port
 // it also accepts a tls Configuration and a timeout as a time.Duration
 func NewTSSLSocketTimeout(hostPort string, cfg *tls.Config, timeout time.Duration) (*TSSLSocket, error) {
+	if cfg.MinVersion == 0 {
+		cfg.MinVersion = tls.VersionTLS10
+	}
 	return &TSSLSocket{hostPort: hostPort, timeout: timeout, cfg: cfg}, nil
 }
 
@@ -87,7 +91,8 @@ func (p *TSSLSocket) Open() error {
 	// If we have a hostname, we need to pass the hostname to tls.Dial for
 	// certificate hostname checks.
 	if p.hostPort != "" {
-		if p.conn, err = tls.Dial("tcp", p.hostPort, p.cfg); err != nil {
+		if p.conn, err = tls.DialWithDialer(&net.Dialer{
+			Timeout: p.timeout}, "tcp", p.hostPort, p.cfg); err != nil {
 			return NewTTransportException(NOT_OPEN, err.Error())
 		}
 	} else {
@@ -103,7 +108,8 @@ func (p *TSSLSocket) Open() error {
 		if len(p.addr.String()) == 0 {
 			return NewTTransportException(NOT_OPEN, "Cannot open bad address.")
 		}
-		if p.conn, err = tls.Dial(p.addr.Network(), p.addr.String(), p.cfg); err != nil {
+		if p.conn, err = tls.DialWithDialer(&net.Dialer{
+			Timeout: p.timeout}, p.addr.Network(), p.addr.String(), p.cfg); err != nil {
 			return NewTTransportException(NOT_OPEN, err.Error())
 		}
 	}
@@ -153,7 +159,7 @@ func (p *TSSLSocket) Write(buf []byte) (int, error) {
 	return p.conn.Write(buf)
 }
 
-func (p *TSSLSocket) Flush() error {
+func (p *TSSLSocket) Flush(ctx context.Context) error {
 	return nil
 }
 
@@ -166,6 +172,5 @@ func (p *TSSLSocket) Interrupt() error {
 
 func (p *TSSLSocket) RemainingBytes() (num_bytes uint64) {
 	const maxSize = ^uint64(0)
-	return maxSize  // the thruth is, we just don't know unless framed is used
+	return maxSize // the thruth is, we just don't know unless framed is used
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/transport.go
index 453899651..ba2738a8d 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/transport.go
@@ -20,6 +20,7 @@
 package thrift
 
 import (
+	"context"
 	"errors"
 	"io"
 )
@@ -30,15 +31,18 @@ type Flusher interface {
 	Flush() (err error)
 }
 
+type ContextFlusher interface {
+	Flush(ctx context.Context) (err error)
+}
+
 type ReadSizeProvider interface {
 	RemainingBytes() (num_bytes uint64)
 }
 
-
 // Encapsulates the I/O layer
 type TTransport interface {
 	io.ReadWriteCloser
-	Flusher
+	ContextFlusher
 	ReadSizeProvider
 
 	// Opens the transport for communication
@@ -52,7 +56,6 @@ type stringWriter interface {
 	WriteString(s string) (n int, err error)
 }
 
-
 // This is "enchanced" transport with extra capabilities. You need to use one of these
 // to construct protocol.
 // Notably, TSocket does not implement this interface, and it is always a mistake to use
@@ -62,7 +65,6 @@ type TRichTransport interface {
 	io.ByteReader
 	io.ByteWriter
 	stringWriter
-	Flusher
+	ContextFlusher
 	ReadSizeProvider
 }
-
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/transport_factory.go b/vendor/github.com/apache/thrift/lib/go/thrift/transport_factory.go
index 533d1b437..c80580794 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/transport_factory.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/transport_factory.go
@@ -24,14 +24,14 @@ package thrift
 // a ServerTransport and then may want to mutate them (i.e. create
 // a BufferedTransport from the underlying base transport)
 type TTransportFactory interface {
-	GetTransport(trans TTransport) TTransport
+	GetTransport(trans TTransport) (TTransport, error)
 }
 
 type tTransportFactory struct{}
 
 // Return a wrapped instance of the base Transport.
-func (p *tTransportFactory) GetTransport(trans TTransport) TTransport {
-	return trans
+func (p *tTransportFactory) GetTransport(trans TTransport) (TTransport, error) {
+	return trans, nil
 }
 
 func NewTTransportFactory() TTransportFactory {
diff --git a/vendor/github.com/apache/thrift/lib/go/thrift/zlib_transport.go b/vendor/github.com/apache/thrift/lib/go/thrift/zlib_transport.go
index e47455fe1..f3d42673a 100644
--- a/vendor/github.com/apache/thrift/lib/go/thrift/zlib_transport.go
+++ b/vendor/github.com/apache/thrift/lib/go/thrift/zlib_transport.go
@@ -21,13 +21,15 @@ package thrift
 
 import (
 	"compress/zlib"
+	"context"
 	"io"
 	"log"
 )
 
 // TZlibTransportFactory is a factory for TZlibTransport instances
 type TZlibTransportFactory struct {
-	level int
+	level   int
+	factory TTransportFactory
 }
 
 // TZlibTransport is a TTransport implementation that makes use of zlib compression.
@@ -38,14 +40,27 @@ type TZlibTransport struct {
 }
 
 // GetTransport constructs a new instance of NewTZlibTransport
-func (p *TZlibTransportFactory) GetTransport(trans TTransport) TTransport {
-	t, _ := NewTZlibTransport(trans, p.level)
-	return t
+func (p *TZlibTransportFactory) GetTransport(trans TTransport) (TTransport, error) {
+	if p.factory != nil {
+		// wrap other factory
+		var err error
+		trans, err = p.factory.GetTransport(trans)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return NewTZlibTransport(trans, p.level)
 }
 
 // NewTZlibTransportFactory constructs a new instance of NewTZlibTransportFactory
 func NewTZlibTransportFactory(level int) *TZlibTransportFactory {
-	return &TZlibTransportFactory{level: level}
+	return &TZlibTransportFactory{level: level, factory: nil}
+}
+
+// NewTZlibTransportFactory constructs a new instance of TZlibTransportFactory
+// as a wrapper over existing transport factory
+func NewTZlibTransportFactoryWithFactory(level int, factory TTransportFactory) *TZlibTransportFactory {
+	return &TZlibTransportFactory{level: level, factory: factory}
 }
 
 // NewTZlibTransport constructs a new instance of TZlibTransport
@@ -77,11 +92,11 @@ func (z *TZlibTransport) Close() error {
 }
 
 // Flush flushes the writer and its underlying transport.
-func (z *TZlibTransport) Flush() error {
+func (z *TZlibTransport) Flush(ctx context.Context) error {
 	if err := z.writer.Flush(); err != nil {
 		return err
 	}
-	return z.transport.Flush()
+	return z.transport.Flush(ctx)
 }
 
 // IsOpen returns true if the transport is open
diff --git a/vendor/github.com/apache/thrift/tutorial/hs/LICENSE b/vendor/github.com/apache/thrift/tutorial/hs/LICENSE
new file mode 100644
index 000000000..3b6d7d74c
--- /dev/null
+++ b/vendor/github.com/apache/thrift/tutorial/hs/LICENSE
@@ -0,0 +1,239 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+--------------------------------------------------
+SOFTWARE DISTRIBUTED WITH THRIFT:
+
+The Apache Thrift software includes a number of subcomponents with
+separate copyright notices and license terms. Your use of the source
+code for the these subcomponents is subject to the terms and
+conditions of the following licenses.
+
+--------------------------------------------------
+Portions of the following files are licensed under the MIT License:
+
+  lib/erl/src/Makefile.am
+
+Please see doc/otp-base-license.txt for the full terms of this license.
+
+--------------------------------------------------
+For the aclocal/ax_boost_base.m4 and contrib/fb303/aclocal/ax_boost_base.m4 components:
+
+#   Copyright (c) 2007 Thomas Porschberg <thomas@randspringer.de>
+#
+#   Copying and distribution of this file, with or without
+#   modification, are permitted in any medium without royalty provided
+#   the copyright notice and this notice are preserved.
+
+--------------------------------------------------
+For the lib/nodejs/lib/thrift/json_parse.js:
+
+/*
+    json_parse.js
+    2015-05-02
+    Public Domain.
+    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
+
+*/
+(By Douglas Crockford <douglas@crockford.com>)
+--------------------------------------------------
diff --git a/vendor/github.com/opentracing/opentracing-go/LICENSE b/vendor/github.com/opentracing/opentracing-go/LICENSE
index 148509a40..f0027349e 100644
--- a/vendor/github.com/opentracing/opentracing-go/LICENSE
+++ b/vendor/github.com/opentracing/opentracing-go/LICENSE
@@ -1,21 +1,201 @@
-The MIT License (MIT)
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
-Copyright (c) 2016 The OpenTracing Authors
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+   1. Definitions.
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2016 The OpenTracing Authors
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/vendor/github.com/opentracing/opentracing-go/ext/tags.go b/vendor/github.com/opentracing/opentracing-go/ext/tags.go
index c67ab5eef..52e889582 100644
--- a/vendor/github.com/opentracing/opentracing-go/ext/tags.go
+++ b/vendor/github.com/opentracing/opentracing-go/ext/tags.go
@@ -1,6 +1,6 @@
 package ext
 
-import opentracing "github.com/opentracing/opentracing-go"
+import "github.com/opentracing/opentracing-go"
 
 // These constants define common tag names recommended for better portability across
 // tracing systems and languages/platforms.
@@ -74,7 +74,7 @@ var (
 	PeerHostname = stringTagName("peer.hostname")
 
 	// PeerHostIPv4 records IP v4 host address of the peer
-	PeerHostIPv4 = uint32TagName("peer.ipv4")
+	PeerHostIPv4 = ipv4Tag("peer.ipv4")
 
 	// PeerHostIPv6 records IP v6 host address of the peer
 	PeerHostIPv6 = stringTagName("peer.ipv6")
@@ -196,3 +196,15 @@ type boolTagName string
 func (tag boolTagName) Set(span opentracing.Span, value bool) {
 	span.SetTag(string(tag), value)
 }
+
+type ipv4Tag string
+
+// Set adds IP v4 host address of the peer as an uint32 value to the `span`, keep this for backward and zipkin compatibility
+func (tag ipv4Tag) Set(span opentracing.Span, value uint32) {
+	span.SetTag(string(tag), value)
+}
+
+// SetString records IP v4 host address of the peer as a .-separated tuple to the `span`. E.g., "127.0.0.1"
+func (tag ipv4Tag) SetString(span opentracing.Span, value string) {
+	span.SetTag(string(tag), value)
+}
diff --git a/vendor/github.com/opentracing/opentracing-go/globaltracer.go b/vendor/github.com/opentracing/opentracing-go/globaltracer.go
index 8c8e793ff..4f7066a92 100644
--- a/vendor/github.com/opentracing/opentracing-go/globaltracer.go
+++ b/vendor/github.com/opentracing/opentracing-go/globaltracer.go
@@ -1,7 +1,12 @@
 package opentracing
 
+type registeredTracer struct {
+	tracer       Tracer
+	isRegistered bool
+}
+
 var (
-	globalTracer Tracer = NoopTracer{}
+	globalTracer = registeredTracer{NoopTracer{}, false}
 )
 
 // SetGlobalTracer sets the [singleton] opentracing.Tracer returned by
@@ -11,22 +16,27 @@ var (
 // Prior to calling `SetGlobalTracer`, any Spans started via the `StartSpan`
 // (etc) globals are noops.
 func SetGlobalTracer(tracer Tracer) {
-	globalTracer = tracer
+	globalTracer = registeredTracer{tracer, true}
 }
 
 // GlobalTracer returns the global singleton `Tracer` implementation.
 // Before `SetGlobalTracer()` is called, the `GlobalTracer()` is a noop
 // implementation that drops all data handed to it.
 func GlobalTracer() Tracer {
-	return globalTracer
+	return globalTracer.tracer
 }
 
 // StartSpan defers to `Tracer.StartSpan`. See `GlobalTracer()`.
 func StartSpan(operationName string, opts ...StartSpanOption) Span {
-	return globalTracer.StartSpan(operationName, opts...)
+	return globalTracer.tracer.StartSpan(operationName, opts...)
 }
 
 // InitGlobalTracer is deprecated. Please use SetGlobalTracer.
 func InitGlobalTracer(tracer Tracer) {
 	SetGlobalTracer(tracer)
 }
+
+// IsGlobalTracerRegistered returns a `bool` to indicate if a tracer has been globally registered
+func IsGlobalTracerRegistered() bool {
+	return globalTracer.isRegistered
+}
diff --git a/vendor/github.com/opentracing/opentracing-go/gocontext.go b/vendor/github.com/opentracing/opentracing-go/gocontext.go
index 222a65202..08c00c04e 100644
--- a/vendor/github.com/opentracing/opentracing-go/gocontext.go
+++ b/vendor/github.com/opentracing/opentracing-go/gocontext.go
@@ -1,6 +1,6 @@
 package opentracing
 
-import "golang.org/x/net/context"
+import "context"
 
 type contextKey struct{}
 
@@ -41,17 +41,20 @@ func SpanFromContext(ctx context.Context) Span {
 //        ...
 //    }
 func StartSpanFromContext(ctx context.Context, operationName string, opts ...StartSpanOption) (Span, context.Context) {
-	return startSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...)
+	return StartSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...)
 }
 
-// startSpanFromContextWithTracer is factored out for testing purposes.
-func startSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) {
-	var span Span
+// StartSpanFromContextWithTracer starts and returns a span with `operationName`
+// using  a span found within the context as a ChildOfRef. If that doesn't exist
+// it creates a root span. It also returns a context.Context object built
+// around the returned span.
+//
+// It's behavior is identical to StartSpanFromContext except that it takes an explicit
+// tracer as opposed to using the global tracer.
+func StartSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) {
 	if parentSpan := SpanFromContext(ctx); parentSpan != nil {
 		opts = append(opts, ChildOf(parentSpan.Context()))
-		span = tracer.StartSpan(operationName, opts...)
-	} else {
-		span = tracer.StartSpan(operationName, opts...)
 	}
+	span := tracer.StartSpan(operationName, opts...)
 	return span, ContextWithSpan(ctx, span)
 }
diff --git a/vendor/github.com/opentracing/opentracing-go/log/field.go b/vendor/github.com/opentracing/opentracing-go/log/field.go
index d2cd39a16..50feea341 100644
--- a/vendor/github.com/opentracing/opentracing-go/log/field.go
+++ b/vendor/github.com/opentracing/opentracing-go/log/field.go
@@ -20,6 +20,7 @@ const (
 	errorType
 	objectType
 	lazyLoggerType
+	noopType
 )
 
 // Field instances are constructed via LogBool, LogString, and so on.
@@ -152,6 +153,25 @@ func Lazy(ll LazyLogger) Field {
 	}
 }
 
+// Noop creates a no-op log field that should be ignored by the tracer.
+// It can be used to capture optional fields, for example those that should
+// only be logged in non-production environment:
+//
+//     func customerField(order *Order) log.Field {
+//          if os.Getenv("ENVIRONMENT") == "dev" {
+//              return log.String("customer", order.Customer.ID)
+//          }
+//          return log.Noop()
+//     }
+//
+//     span.LogFields(log.String("event", "purchase"), customerField(order))
+//
+func Noop() Field {
+	return Field{
+		fieldType: noopType,
+	}
+}
+
 // Encoder allows access to the contents of a Field (via a call to
 // Field.Marshal).
 //
@@ -203,6 +223,8 @@ func (lf Field) Marshal(visitor Encoder) {
 		visitor.EmitObject(lf.key, lf.interfaceVal)
 	case lazyLoggerType:
 		visitor.EmitLazyLogger(lf.interfaceVal.(LazyLogger))
+	case noopType:
+		// intentionally left blank
 	}
 }
 
@@ -234,6 +256,8 @@ func (lf Field) Value() interface{} {
 		return math.Float64frombits(uint64(lf.numericVal))
 	case errorType, objectType, lazyLoggerType:
 		return lf.interfaceVal
+	case noopType:
+		return nil
 	default:
 		return nil
 	}
diff --git a/vendor/github.com/opentracing/opentracing-go/propagation.go b/vendor/github.com/opentracing/opentracing-go/propagation.go
index 9583fc53a..b0c275eb0 100644
--- a/vendor/github.com/opentracing/opentracing-go/propagation.go
+++ b/vendor/github.com/opentracing/opentracing-go/propagation.go
@@ -72,18 +72,18 @@ const (
 	//
 	// For Tracer.Extract(): the carrier must be a `TextMapReader`.
 	//
-	// See HTTPHeaderCarrier for an implementation of both TextMapWriter
+	// See HTTPHeadersCarrier for an implementation of both TextMapWriter
 	// and TextMapReader that defers to an http.Header instance for storage.
 	// For example, Inject():
 	//
 	//    carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
 	//    err := span.Tracer().Inject(
-	//        span, opentracing.HTTPHeaders, carrier)
+	//        span.Context(), opentracing.HTTPHeaders, carrier)
 	//
 	// Or Extract():
 	//
 	//    carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
-	//    span, err := tracer.Extract(
+	//    clientContext, err := tracer.Extract(
 	//        opentracing.HTTPHeaders, carrier)
 	//
 	HTTPHeaders
@@ -144,15 +144,15 @@ func (c TextMapCarrier) Set(key, val string) {
 //
 // Example usage for server side:
 //
-//     carrier := opentracing.HttpHeadersCarrier(httpReq.Header)
-//     spanContext, err := tracer.Extract(opentracing.HttpHeaders, carrier)
+//     carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
+//     clientContext, err := tracer.Extract(opentracing.HTTPHeaders, carrier)
 //
 // Example usage for client side:
 //
 //     carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
 //     err := tracer.Inject(
 //         span.Context(),
-//         opentracing.HttpHeaders,
+//         opentracing.HTTPHeaders,
 //         carrier)
 //
 type HTTPHeadersCarrier http.Header
@@ -160,7 +160,7 @@ type HTTPHeadersCarrier http.Header
 // Set conforms to the TextMapWriter interface.
 func (c HTTPHeadersCarrier) Set(key, val string) {
 	h := http.Header(c)
-	h.Add(key, val)
+	h.Set(key, val)
 }
 
 // ForeachKey conforms to the TextMapReader interface.
diff --git a/vendor/github.com/opentracing/opentracing-go/span.go b/vendor/github.com/opentracing/opentracing-go/span.go
index f6c3234ac..0d3fb5341 100644
--- a/vendor/github.com/opentracing/opentracing-go/span.go
+++ b/vendor/github.com/opentracing/opentracing-go/span.go
@@ -41,6 +41,8 @@ type Span interface {
 	Context() SpanContext
 
 	// Sets or changes the operation name.
+	//
+	// Returns a reference to this Span for chaining.
 	SetOperationName(operationName string) Span
 
 	// Adds a tag to the span.
@@ -51,6 +53,8 @@ type Span interface {
 	// other tag value types is undefined at the OpenTracing level. If a
 	// tracing system does not know how to handle a particular value type, it
 	// may ignore the tag, but shall not panic.
+	//
+	// Returns a reference to this Span for chaining.
 	SetTag(key string, value interface{}) Span
 
 	// LogFields is an efficient and type-checked way to record key:value
diff --git a/vendor/github.com/opentracing/opentracing-go/tracer.go b/vendor/github.com/opentracing/opentracing-go/tracer.go
index fd77c1df3..715f0cedf 100644
--- a/vendor/github.com/opentracing/opentracing-go/tracer.go
+++ b/vendor/github.com/opentracing/opentracing-go/tracer.go
@@ -30,7 +30,7 @@ type Tracer interface {
 	//     sp := tracer.StartSpan(
 	//         "GetFeed",
 	//         opentracing.ChildOf(parentSpan.Context()),
-	//         opentracing.Tag("user_agent", loggedReq.UserAgent),
+	//         opentracing.Tag{"user_agent", loggedReq.UserAgent},
 	//         opentracing.StartTime(loggedReq.Timestamp),
 	//     )
 	//
@@ -44,8 +44,7 @@ type Tracer interface {
 	// and each has an expected carrier type.
 	//
 	// Other packages may declare their own `format` values, much like the keys
-	// used by `context.Context` (see
-	// https://godoc.org/golang.org/x/net/context#WithValue).
+	// used by `context.Context` (see https://godoc.org/context#WithValue).
 	//
 	// Example usage (sans error handling):
 	//
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/LICENSE b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/LICENSE
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/LICENSE
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/LICENSE
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector-http.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-http.go
similarity index 78%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/collector-http.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-http.go
index ea507ac18..a41bc0175 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector-http.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-http.go
@@ -3,12 +3,11 @@ package zipkintracer
 import (
 	"bytes"
 	"net/http"
-	"sync"
 	"time"
 
 	"github.com/apache/thrift/lib/go/thrift"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 // Default timeout for http request in seconds
@@ -29,12 +28,9 @@ type HTTPCollector struct {
 	batchInterval time.Duration
 	batchSize     int
 	maxBacklog    int
-	batch         []*zipkincore.Span
 	spanc         chan *zipkincore.Span
 	quit          chan struct{}
 	shutdown      chan error
-	sendMutex     *sync.Mutex
-	batchMutex    *sync.Mutex
 	reqCallback   RequestCallback
 }
 
@@ -100,25 +96,32 @@ func NewHTTPCollector(url string, options ...HTTPOption) (Collector, error) {
 		batchInterval: defaultHTTPBatchInterval * time.Second,
 		batchSize:     defaultHTTPBatchSize,
 		maxBacklog:    defaultHTTPMaxBacklog,
-		batch:         []*zipkincore.Span{},
-		spanc:         make(chan *zipkincore.Span),
 		quit:          make(chan struct{}, 1),
 		shutdown:      make(chan error, 1),
-		sendMutex:     &sync.Mutex{},
-		batchMutex:    &sync.Mutex{},
 	}
 
 	for _, option := range options {
 		option(c)
 	}
 
+	// spanc can immediately accept maxBacklog spans and everything else is dropped.
+	c.spanc = make(chan *zipkincore.Span, c.maxBacklog)
+
 	go c.loop()
 	return c, nil
 }
 
 // Collect implements Collector.
+// attempts a non blocking send on the channel.
 func (c *HTTPCollector) Collect(s *zipkincore.Span) error {
-	c.spanc <- s
+	select {
+	case c.spanc <- s:
+		// Accepted.
+	case <-c.quit:
+		// Collector concurrently closed.
+	default:
+		c.logger.Log("msg", "queue full, disposing spans.", "size", len(c.spanc))
+	}
 	return nil
 }
 
@@ -153,55 +156,35 @@ func (c *HTTPCollector) loop() {
 	)
 	defer ticker.Stop()
 
+	// The following loop is single threaded
+	// allocate enough space so we don't have to reallocate.
+	batch := make([]*zipkincore.Span, 0, c.batchSize)
+
 	for {
 		select {
 		case span := <-c.spanc:
-			currentBatchSize := c.append(span)
-			if currentBatchSize >= c.batchSize {
+			batch = append(batch, span)
+			if len(batch) == c.batchSize {
+				c.send(batch)
+				batch = batch[0:0]
 				nextSend = time.Now().Add(c.batchInterval)
-				go c.send()
 			}
 		case <-tickc:
 			if time.Now().After(nextSend) {
+				if len(batch) > 0 {
+					c.send(batch)
+					batch = batch[0:0]
+				}
 				nextSend = time.Now().Add(c.batchInterval)
-				go c.send()
 			}
 		case <-c.quit:
-			c.shutdown <- c.send()
+			c.shutdown <- c.send(batch)
 			return
 		}
 	}
 }
 
-func (c *HTTPCollector) append(span *zipkincore.Span) (newBatchSize int) {
-	c.batchMutex.Lock()
-	defer c.batchMutex.Unlock()
-
-	c.batch = append(c.batch, span)
-	if len(c.batch) > c.maxBacklog {
-		dispose := len(c.batch) - c.maxBacklog
-		c.logger.Log("msg", "backlog too long, disposing spans.", "count", dispose)
-		c.batch = c.batch[dispose:]
-	}
-	newBatchSize = len(c.batch)
-	return
-}
-
-func (c *HTTPCollector) send() error {
-	// in order to prevent sending the same batch twice
-	c.sendMutex.Lock()
-	defer c.sendMutex.Unlock()
-
-	// Select all current spans in the batch to be sent
-	c.batchMutex.Lock()
-	sendBatch := c.batch[:]
-	c.batchMutex.Unlock()
-
-	// Do not send an empty batch
-	if len(sendBatch) == 0 {
-		return nil
-	}
-
+func (c *HTTPCollector) send(sendBatch []*zipkincore.Span) error {
 	req, err := http.NewRequest(
 		"POST",
 		c.url,
@@ -214,15 +197,15 @@ func (c *HTTPCollector) send() error {
 	if c.reqCallback != nil {
 		c.reqCallback(req)
 	}
-	if _, err = c.client.Do(req); err != nil {
+	resp, err := c.client.Do(req)
+	if err != nil {
 		c.logger.Log("err", err.Error())
 		return err
 	}
-
-	// Remove sent spans from the batch
-	c.batchMutex.Lock()
-	c.batch = c.batch[len(sendBatch):]
-	c.batchMutex.Unlock()
-
+	resp.Body.Close()
+	// non 2xx code
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		c.logger.Log("err", "HTTP POST span failed", "code", resp.Status)
+	}
 	return nil
 }
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector-kafka.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-kafka.go
similarity index 96%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/collector-kafka.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-kafka.go
index eb18c3f36..08f6698e5 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector-kafka.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-kafka.go
@@ -4,7 +4,7 @@ import (
 	"github.com/Shopify/sarama"
 	"github.com/apache/thrift/lib/go/thrift"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 // defaultKafkaTopic sets the standard Kafka topic our Collector will publish
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector-scribe.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-scribe.go
similarity index 94%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/collector-scribe.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-scribe.go
index 1abdb3168..c2e5ea013 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector-scribe.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector-scribe.go
@@ -1,6 +1,7 @@
 package zipkintracer
 
 import (
+	"context"
 	"encoding/base64"
 	"fmt"
 	"net"
@@ -9,8 +10,8 @@ import (
 
 	"github.com/apache/thrift/lib/go/thrift"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe"
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 const defaultScribeCategory = "zipkin"
@@ -112,8 +113,13 @@ func NewScribeCollector(addr string, timeout time.Duration, options ...ScribeOpt
 
 // Collect implements Collector.
 func (c *ScribeCollector) Collect(s *zipkincore.Span) error {
-	c.spanc <- s
-	return nil // accepted
+	select {
+	case c.spanc <- s:
+		// Accepted.
+	case <-c.quit:
+		// Collector concurrently closed.
+	}
+	return nil
 }
 
 // Close implements Collector.
@@ -198,7 +204,7 @@ func (c *ScribeCollector) send() error {
 			return err
 		}
 	}
-	if rc, err := c.client.Log(sendBatch); err != nil {
+	if rc, err := c.client.Log(context.Background(), sendBatch); err != nil {
 		c.client = nil
 		_ = c.logger.Log("err", fmt.Sprintf("during Log: %v", err))
 		return err
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector.go
similarity index 93%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/collector.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector.go
index f8cfb58e3..e08acbcf3 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/collector.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/collector.go
@@ -3,7 +3,7 @@ package zipkintracer
 import (
 	"strings"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 // Collector represents a Zipkin trace collector, which is probably a set of
@@ -47,6 +47,11 @@ func (c MultiCollector) aggregateErrors(f func(c Collector) error) error {
 			e.errs[i] = err
 		}
 	}
+
+	if e == nil {
+		return nil
+	}
+
 	return e
 }
 
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/context.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/context.go
similarity index 92%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/context.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/context.go
index e9fe29911..2aae1659a 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/context.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/context.go
@@ -1,8 +1,8 @@
 package zipkintracer
 
 import (
-	"github.com/openzipkin/zipkin-go-opentracing/flag"
-	"github.com/openzipkin/zipkin-go-opentracing/types"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/flag"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/types"
 )
 
 // SpanContext holds the basic Span metadata.
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/debug.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/debug.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/debug.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/debug.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/event.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/event.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/event.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/event.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/flag/flags.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/flag/flags.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/flag/flags.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/flag/flags.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/log-materializers.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/log-materializers.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/log-materializers.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/log-materializers.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/logger.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/logger.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/logger.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/logger.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/observer.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/observer.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/observer.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/observer.go
index d0b5da60a..f46ff011a 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/observer.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/observer.go
@@ -1,8 +1,8 @@
 package zipkintracer
 
 import (
-	opentracing "github.com/opentracing/opentracing-go"
 	otobserver "github.com/opentracing-contrib/go-observer"
+	opentracing "github.com/opentracing/opentracing-go"
 )
 
 // observer is a dispatcher to other observers
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/propagation.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/propagation.go
similarity index 93%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/propagation.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/propagation.go
index 56d2d5aa3..8092c07b2 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/propagation.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/propagation.go
@@ -3,8 +3,8 @@ package zipkintracer
 import (
 	opentracing "github.com/opentracing/opentracing-go"
 
-	"github.com/openzipkin/zipkin-go-opentracing/flag"
-	"github.com/openzipkin/zipkin-go-opentracing/types"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/flag"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/types"
 )
 
 type accessorPropagator struct {
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/propagation_ot.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/propagation_ot.go
similarity index 81%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/propagation_ot.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/propagation_ot.go
index 2142d5e32..a1bbec6ce 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/propagation_ot.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/propagation_ot.go
@@ -2,6 +2,7 @@ package zipkintracer
 
 import (
 	"encoding/binary"
+	"fmt"
 	"io"
 	"strconv"
 	"strings"
@@ -9,9 +10,9 @@ import (
 	"github.com/gogo/protobuf/proto"
 	opentracing "github.com/opentracing/opentracing-go"
 
-	"github.com/openzipkin/zipkin-go-opentracing/flag"
-	"github.com/openzipkin/zipkin-go-opentracing/types"
-	"github.com/openzipkin/zipkin-go-opentracing/wire"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/flag"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/types"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/wire"
 )
 
 type textMapPropagator struct {
@@ -25,12 +26,11 @@ const (
 	prefixTracerState = "x-b3-" // we default to interop with non-opentracing zipkin tracers
 	prefixBaggage     = "ot-baggage-"
 
-	tracerStateFieldCount = 3 // not 5, X-B3-ParentSpanId is optional and we allow optional Sampled header
-	zipkinTraceID         = prefixTracerState + "traceid"
-	zipkinSpanID          = prefixTracerState + "spanid"
-	zipkinParentSpanID    = prefixTracerState + "parentspanid"
-	zipkinSampled         = prefixTracerState + "sampled"
-	zipkinFlags           = prefixTracerState + "flags"
+	zipkinTraceID      = prefixTracerState + "traceid"
+	zipkinSpanID       = prefixTracerState + "spanid"
+	zipkinParentSpanID = prefixTracerState + "parentspanid"
+	zipkinSampled      = prefixTracerState + "sampled"
+	zipkinFlags        = prefixTracerState + "flags"
 )
 
 func (p *textMapPropagator) Inject(
@@ -45,14 +45,23 @@ func (p *textMapPropagator) Inject(
 	if !ok {
 		return opentracing.ErrInvalidCarrier
 	}
-	carrier.Set(zipkinTraceID, sc.TraceID.ToHex())
-	carrier.Set(zipkinSpanID, strconv.FormatUint(sc.SpanID, 16))
-	carrier.Set(zipkinSampled, strconv.FormatBool(sc.Sampled))
 
-	if sc.ParentSpanID != nil {
-		// we only set ParentSpanID header if there is a parent span
-		carrier.Set(zipkinParentSpanID, strconv.FormatUint(*sc.ParentSpanID, 16))
+	// only inject IDs if both trace ID and span ID are present
+	if !sc.TraceID.Empty() && sc.SpanID > 0 {
+		carrier.Set(zipkinTraceID, sc.TraceID.ToHex())
+		carrier.Set(zipkinSpanID, fmt.Sprintf("%016x", sc.SpanID))
+		if sc.ParentSpanID != nil {
+			// we only set ParentSpanID header if there is a parent span
+			carrier.Set(zipkinParentSpanID, fmt.Sprintf("%016x", *sc.ParentSpanID))
+		}
 	}
+
+	if sc.Sampled {
+		carrier.Set(zipkinSampled, "1")
+	} else {
+		carrier.Set(zipkinSampled, "0")
+	}
+
 	// we only need to inject the debug flag if set. see flag package for details.
 	flags := sc.Flags & flag.Debug
 	carrier.Set(zipkinFlags, strconv.FormatUint(uint64(flags), 10))
@@ -80,6 +89,8 @@ func (p *textMapPropagator) Extract(
 		err          error
 	)
 	decodedBaggage := make(map[string]string)
+
+	var traceIDFound, spanIDFound bool
 	err = carrier.ForeachKey(func(k, v string) error {
 		switch strings.ToLower(k) {
 		case zipkinTraceID:
@@ -87,11 +98,21 @@ func (p *textMapPropagator) Extract(
 			if err != nil {
 				return opentracing.ErrSpanContextCorrupted
 			}
+			// mark TraceID as found
+			if !traceIDFound {
+				requiredFieldCount++
+				traceIDFound = true
+			}
 		case zipkinSpanID:
 			spanID, err = strconv.ParseUint(v, 16, 64)
 			if err != nil {
 				return opentracing.ErrSpanContextCorrupted
 			}
+			// mark SpanID as found
+			if !spanIDFound {
+				requiredFieldCount++
+				spanIDFound = true
+			}
 		case zipkinParentSpanID:
 			var id uint64
 			id, err = strconv.ParseUint(v, 16, 64)
@@ -120,19 +141,15 @@ func (p *textMapPropagator) Extract(
 			if strings.HasPrefix(lowercaseK, prefixBaggage) {
 				decodedBaggage[strings.TrimPrefix(lowercaseK, prefixBaggage)] = v
 			}
-			// Balance off the requiredFieldCount++ just below...
-			requiredFieldCount--
 		}
-		requiredFieldCount++
 		return nil
 	})
 	if err != nil {
 		return nil, err
 	}
-	if requiredFieldCount < tracerStateFieldCount {
-		if requiredFieldCount == 0 {
-			return nil, opentracing.ErrSpanContextNotFound
-		}
+
+	// required fields must both be present or neither be present
+	if requiredFieldCount != 0 && requiredFieldCount != 2 {
 		return nil, opentracing.ErrSpanContextCorrupted
 	}
 
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/raw.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/raw.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/raw.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/raw.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/recorder.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/recorder.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/recorder.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/recorder.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/sample.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/sample.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/sample.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/sample.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/span.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/span.go
similarity index 98%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/span.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/span.go
index f90652268..83110eb9b 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/span.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/span.go
@@ -8,8 +8,8 @@ import (
 	"github.com/opentracing/opentracing-go/ext"
 	"github.com/opentracing/opentracing-go/log"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 	otobserver "github.com/opentracing-contrib/go-observer"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 // Span provides access to the essential details of the span, for use
diff --git a/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/GoUnusedProtection__.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/GoUnusedProtection__.go
new file mode 100644
index 000000000..9b51d874a
--- /dev/null
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/GoUnusedProtection__.go
@@ -0,0 +1,7 @@
+// Autogenerated by Thrift Compiler (1.0.0-dev)
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+
+package scribe
+
+var GoUnusedProtection__ int;
+
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/constants.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe-consts.go
similarity index 70%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/constants.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe-consts.go
index 45fee5a9c..994de2a14 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/constants.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe-consts.go
@@ -1,10 +1,12 @@
-// Autogenerated by Thrift Compiler (0.9.3)
+// Autogenerated by Thrift Compiler (1.0.0-dev)
 // DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
 
 package scribe
 
 import (
 	"bytes"
+	"context"
+	"reflect"
 	"fmt"
 	"github.com/apache/thrift/lib/go/thrift"
 )
@@ -12,7 +14,11 @@ import (
 // (needed to ensure safety because of naive import list construction.)
 var _ = thrift.ZERO
 var _ = fmt.Printf
+var _ = context.Background
+var _ = reflect.DeepEqual
 var _ = bytes.Equal
 
+
 func init() {
 }
+
diff --git a/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go
new file mode 100644
index 000000000..4ff1151b3
--- /dev/null
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go
@@ -0,0 +1,551 @@
+// Autogenerated by Thrift Compiler (1.0.0-dev)
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+
+package scribe
+
+import (
+	"bytes"
+	"context"
+	"reflect"
+	"database/sql/driver"
+	"errors"
+	"fmt"
+	"github.com/apache/thrift/lib/go/thrift"
+)
+
+// (needed to ensure safety because of naive import list construction.)
+var _ = thrift.ZERO
+var _ = fmt.Printf
+var _ = context.Background
+var _ = reflect.DeepEqual
+var _ = bytes.Equal
+
+type ResultCode int64
+const (
+  ResultCode_OK ResultCode = 0
+  ResultCode_TRY_LATER ResultCode = 1
+)
+
+func (p ResultCode) String() string {
+  switch p {
+  case ResultCode_OK: return "OK"
+  case ResultCode_TRY_LATER: return "TRY_LATER"
+  }
+  return "<UNSET>"
+}
+
+func ResultCodeFromString(s string) (ResultCode, error) {
+  switch s {
+  case "OK": return ResultCode_OK, nil 
+  case "TRY_LATER": return ResultCode_TRY_LATER, nil 
+  }
+  return ResultCode(0), fmt.Errorf("not a valid ResultCode string")
+}
+
+
+func ResultCodePtr(v ResultCode) *ResultCode { return &v }
+
+func (p ResultCode) MarshalText() ([]byte, error) {
+return []byte(p.String()), nil
+}
+
+func (p *ResultCode) UnmarshalText(text []byte) error {
+q, err := ResultCodeFromString(string(text))
+if (err != nil) {
+return err
+}
+*p = q
+return nil
+}
+
+func (p *ResultCode) Scan(value interface{}) error {
+v, ok := value.(int64)
+if !ok {
+return errors.New("Scan value is not int64")
+}
+*p = ResultCode(v)
+return nil
+}
+
+func (p * ResultCode) Value() (driver.Value, error) {
+  if p == nil {
+    return nil, nil
+  }
+return int64(*p), nil
+}
+// Attributes:
+//  - Category
+//  - Message
+type LogEntry struct {
+  Category string `thrift:"category,1" db:"category" json:"category"`
+  Message string `thrift:"message,2" db:"message" json:"message"`
+}
+
+func NewLogEntry() *LogEntry {
+  return &LogEntry{}
+}
+
+
+func (p *LogEntry) GetCategory() string {
+  return p.Category
+}
+
+func (p *LogEntry) GetMessage() string {
+  return p.Message
+}
+func (p *LogEntry) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 1:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField1(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 2:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField2(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *LogEntry)  ReadField1(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadString(); err != nil {
+  return thrift.PrependError("error reading field 1: ", err)
+} else {
+  p.Category = v
+}
+  return nil
+}
+
+func (p *LogEntry)  ReadField2(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadString(); err != nil {
+  return thrift.PrependError("error reading field 2: ", err)
+} else {
+  p.Message = v
+}
+  return nil
+}
+
+func (p *LogEntry) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("LogEntry"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField1(oprot); err != nil { return err }
+    if err := p.writeField2(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *LogEntry) writeField1(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("category", thrift.STRING, 1); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:category: ", p), err) }
+  if err := oprot.WriteString(string(p.Category)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.category (1) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 1:category: ", p), err) }
+  return err
+}
+
+func (p *LogEntry) writeField2(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("message", thrift.STRING, 2); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:message: ", p), err) }
+  if err := oprot.WriteString(string(p.Message)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.message (2) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 2:message: ", p), err) }
+  return err
+}
+
+func (p *LogEntry) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("LogEntry(%+v)", *p)
+}
+
+type Scribe interface {
+  // Parameters:
+  //  - Messages
+  Log(ctx context.Context, messages []*LogEntry) (r ResultCode, err error)
+}
+
+type ScribeClient struct {
+  c thrift.TClient
+}
+
+func NewScribeClientFactory(t thrift.TTransport, f thrift.TProtocolFactory) *ScribeClient {
+  return &ScribeClient{
+    c: thrift.NewTStandardClient(f.GetProtocol(t), f.GetProtocol(t)),
+  }
+}
+
+func NewScribeClientProtocol(t thrift.TTransport, iprot thrift.TProtocol, oprot thrift.TProtocol) *ScribeClient {
+  return &ScribeClient{
+    c: thrift.NewTStandardClient(iprot, oprot),
+  }
+}
+
+func NewScribeClient(c thrift.TClient) *ScribeClient {
+  return &ScribeClient{
+    c: c,
+  }
+}
+
+func (p *ScribeClient) Client_() thrift.TClient {
+  return p.c
+}
+// Parameters:
+//  - Messages
+func (p *ScribeClient) Log(ctx context.Context, messages []*LogEntry) (r ResultCode, err error) {
+  var _args0 ScribeLogArgs
+  _args0.Messages = messages
+  var _result1 ScribeLogResult
+  if err = p.Client_().Call(ctx, "Log", &_args0, &_result1); err != nil {
+    return
+  }
+  return _result1.GetSuccess(), nil
+}
+
+type ScribeProcessor struct {
+  processorMap map[string]thrift.TProcessorFunction
+  handler Scribe
+}
+
+func (p *ScribeProcessor) AddToProcessorMap(key string, processor thrift.TProcessorFunction) {
+  p.processorMap[key] = processor
+}
+
+func (p *ScribeProcessor) GetProcessorFunction(key string) (processor thrift.TProcessorFunction, ok bool) {
+  processor, ok = p.processorMap[key]
+  return processor, ok
+}
+
+func (p *ScribeProcessor) ProcessorMap() map[string]thrift.TProcessorFunction {
+  return p.processorMap
+}
+
+func NewScribeProcessor(handler Scribe) *ScribeProcessor {
+
+  self2 := &ScribeProcessor{handler:handler, processorMap:make(map[string]thrift.TProcessorFunction)}
+  self2.processorMap["Log"] = &scribeProcessorLog{handler:handler}
+return self2
+}
+
+func (p *ScribeProcessor) Process(ctx context.Context, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
+  name, _, seqId, err := iprot.ReadMessageBegin()
+  if err != nil { return false, err }
+  if processor, ok := p.GetProcessorFunction(name); ok {
+    return processor.Process(ctx, seqId, iprot, oprot)
+  }
+  iprot.Skip(thrift.STRUCT)
+  iprot.ReadMessageEnd()
+  x3 := thrift.NewTApplicationException(thrift.UNKNOWN_METHOD, "Unknown function " + name)
+  oprot.WriteMessageBegin(name, thrift.EXCEPTION, seqId)
+  x3.Write(oprot)
+  oprot.WriteMessageEnd()
+  oprot.Flush(ctx)
+  return false, x3
+
+}
+
+type scribeProcessorLog struct {
+  handler Scribe
+}
+
+func (p *scribeProcessorLog) Process(ctx context.Context, seqId int32, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
+  args := ScribeLogArgs{}
+  if err = args.Read(iprot); err != nil {
+    iprot.ReadMessageEnd()
+    x := thrift.NewTApplicationException(thrift.PROTOCOL_ERROR, err.Error())
+    oprot.WriteMessageBegin("Log", thrift.EXCEPTION, seqId)
+    x.Write(oprot)
+    oprot.WriteMessageEnd()
+    oprot.Flush(ctx)
+    return false, err
+  }
+
+  iprot.ReadMessageEnd()
+  result := ScribeLogResult{}
+var retval ResultCode
+  var err2 error
+  if retval, err2 = p.handler.Log(ctx, args.Messages); err2 != nil {
+    x := thrift.NewTApplicationException(thrift.INTERNAL_ERROR, "Internal error processing Log: " + err2.Error())
+    oprot.WriteMessageBegin("Log", thrift.EXCEPTION, seqId)
+    x.Write(oprot)
+    oprot.WriteMessageEnd()
+    oprot.Flush(ctx)
+    return true, err2
+  } else {
+    result.Success = &retval
+}
+  if err2 = oprot.WriteMessageBegin("Log", thrift.REPLY, seqId); err2 != nil {
+    err = err2
+  }
+  if err2 = result.Write(oprot); err == nil && err2 != nil {
+    err = err2
+  }
+  if err2 = oprot.WriteMessageEnd(); err == nil && err2 != nil {
+    err = err2
+  }
+  if err2 = oprot.Flush(ctx); err == nil && err2 != nil {
+    err = err2
+  }
+  if err != nil {
+    return
+  }
+  return true, err
+}
+
+
+// HELPER FUNCTIONS AND STRUCTURES
+
+// Attributes:
+//  - Messages
+type ScribeLogArgs struct {
+  Messages []*LogEntry `thrift:"messages,1" db:"messages" json:"messages"`
+}
+
+func NewScribeLogArgs() *ScribeLogArgs {
+  return &ScribeLogArgs{}
+}
+
+
+func (p *ScribeLogArgs) GetMessages() []*LogEntry {
+  return p.Messages
+}
+func (p *ScribeLogArgs) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 1:
+      if fieldTypeId == thrift.LIST {
+        if err := p.ReadField1(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *ScribeLogArgs)  ReadField1(iprot thrift.TProtocol) error {
+  _, size, err := iprot.ReadListBegin()
+  if err != nil {
+    return thrift.PrependError("error reading list begin: ", err)
+  }
+  tSlice := make([]*LogEntry, 0, size)
+  p.Messages =  tSlice
+  for i := 0; i < size; i ++ {
+    _elem4 := &LogEntry{}
+    if err := _elem4.Read(iprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", _elem4), err)
+    }
+    p.Messages = append(p.Messages, _elem4)
+  }
+  if err := iprot.ReadListEnd(); err != nil {
+    return thrift.PrependError("error reading list end: ", err)
+  }
+  return nil
+}
+
+func (p *ScribeLogArgs) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("Log_args"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField1(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *ScribeLogArgs) writeField1(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("messages", thrift.LIST, 1); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:messages: ", p), err) }
+  if err := oprot.WriteListBegin(thrift.STRUCT, len(p.Messages)); err != nil {
+    return thrift.PrependError("error writing list begin: ", err)
+  }
+  for _, v := range p.Messages {
+    if err := v.Write(oprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", v), err)
+    }
+  }
+  if err := oprot.WriteListEnd(); err != nil {
+    return thrift.PrependError("error writing list end: ", err)
+  }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 1:messages: ", p), err) }
+  return err
+}
+
+func (p *ScribeLogArgs) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("ScribeLogArgs(%+v)", *p)
+}
+
+// Attributes:
+//  - Success
+type ScribeLogResult struct {
+  Success *ResultCode `thrift:"success,0" db:"success" json:"success,omitempty"`
+}
+
+func NewScribeLogResult() *ScribeLogResult {
+  return &ScribeLogResult{}
+}
+
+var ScribeLogResult_Success_DEFAULT ResultCode
+func (p *ScribeLogResult) GetSuccess() ResultCode {
+  if !p.IsSetSuccess() {
+    return ScribeLogResult_Success_DEFAULT
+  }
+return *p.Success
+}
+func (p *ScribeLogResult) IsSetSuccess() bool {
+  return p.Success != nil
+}
+
+func (p *ScribeLogResult) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 0:
+      if fieldTypeId == thrift.I32 {
+        if err := p.ReadField0(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *ScribeLogResult)  ReadField0(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI32(); err != nil {
+  return thrift.PrependError("error reading field 0: ", err)
+} else {
+  temp := ResultCode(v)
+  p.Success = &temp
+}
+  return nil
+}
+
+func (p *ScribeLogResult) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("Log_result"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField0(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *ScribeLogResult) writeField0(oprot thrift.TProtocol) (err error) {
+  if p.IsSetSuccess() {
+    if err := oprot.WriteFieldBegin("success", thrift.I32, 0); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 0:success: ", p), err) }
+    if err := oprot.WriteI32(int32(*p.Success)); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.success (0) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 0:success: ", p), err) }
+  }
+  return err
+}
+
+func (p *ScribeLogResult) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("ScribeLogResult(%+v)", *p)
+}
+
+
diff --git a/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/GoUnusedProtection__.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/GoUnusedProtection__.go
new file mode 100644
index 000000000..2d5ebe7f4
--- /dev/null
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/GoUnusedProtection__.go
@@ -0,0 +1,7 @@
+// Autogenerated by Thrift Compiler (1.0.0-dev)
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+
+package zipkincore
+
+var GoUnusedProtection__ int;
+
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/constants.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore-consts.go
similarity index 88%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/constants.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore-consts.go
index 1ee506417..925236e16 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/constants.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore-consts.go
@@ -1,10 +1,12 @@
-// Autogenerated by Thrift Compiler (0.9.3)
+// Autogenerated by Thrift Compiler (1.0.0-dev)
 // DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
 
 package zipkincore
 
 import (
 	"bytes"
+	"context"
+	"reflect"
 	"fmt"
 	"github.com/apache/thrift/lib/go/thrift"
 )
@@ -12,6 +14,8 @@ import (
 // (needed to ensure safety because of naive import list construction.)
 var _ = thrift.ZERO
 var _ = fmt.Printf
+var _ = context.Background
+var _ = reflect.DeepEqual
 var _ = bytes.Equal
 
 const CLIENT_SEND = "cs"
@@ -38,3 +42,4 @@ const SERVER_ADDR = "sa"
 
 func init() {
 }
+
diff --git a/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore.go
new file mode 100644
index 000000000..a9094a537
--- /dev/null
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore/zipkinCore.go
@@ -0,0 +1,1285 @@
+// Autogenerated by Thrift Compiler (1.0.0-dev)
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+
+package zipkincore
+
+import (
+	"bytes"
+	"context"
+	"reflect"
+	"database/sql/driver"
+	"errors"
+	"fmt"
+	"github.com/apache/thrift/lib/go/thrift"
+)
+
+// (needed to ensure safety because of naive import list construction.)
+var _ = thrift.ZERO
+var _ = fmt.Printf
+var _ = context.Background
+var _ = reflect.DeepEqual
+var _ = bytes.Equal
+
+//A subset of thrift base types, except BYTES.
+type AnnotationType int64
+const (
+  AnnotationType_BOOL AnnotationType = 0
+  AnnotationType_BYTES AnnotationType = 1
+  AnnotationType_I16 AnnotationType = 2
+  AnnotationType_I32 AnnotationType = 3
+  AnnotationType_I64 AnnotationType = 4
+  AnnotationType_DOUBLE AnnotationType = 5
+  AnnotationType_STRING AnnotationType = 6
+)
+
+func (p AnnotationType) String() string {
+  switch p {
+  case AnnotationType_BOOL: return "BOOL"
+  case AnnotationType_BYTES: return "BYTES"
+  case AnnotationType_I16: return "I16"
+  case AnnotationType_I32: return "I32"
+  case AnnotationType_I64: return "I64"
+  case AnnotationType_DOUBLE: return "DOUBLE"
+  case AnnotationType_STRING: return "STRING"
+  }
+  return "<UNSET>"
+}
+
+func AnnotationTypeFromString(s string) (AnnotationType, error) {
+  switch s {
+  case "BOOL": return AnnotationType_BOOL, nil 
+  case "BYTES": return AnnotationType_BYTES, nil 
+  case "I16": return AnnotationType_I16, nil 
+  case "I32": return AnnotationType_I32, nil 
+  case "I64": return AnnotationType_I64, nil 
+  case "DOUBLE": return AnnotationType_DOUBLE, nil 
+  case "STRING": return AnnotationType_STRING, nil 
+  }
+  return AnnotationType(0), fmt.Errorf("not a valid AnnotationType string")
+}
+
+
+func AnnotationTypePtr(v AnnotationType) *AnnotationType { return &v }
+
+func (p AnnotationType) MarshalText() ([]byte, error) {
+return []byte(p.String()), nil
+}
+
+func (p *AnnotationType) UnmarshalText(text []byte) error {
+q, err := AnnotationTypeFromString(string(text))
+if (err != nil) {
+return err
+}
+*p = q
+return nil
+}
+
+func (p *AnnotationType) Scan(value interface{}) error {
+v, ok := value.(int64)
+if !ok {
+return errors.New("Scan value is not int64")
+}
+*p = AnnotationType(v)
+return nil
+}
+
+func (p * AnnotationType) Value() (driver.Value, error) {
+  if p == nil {
+    return nil, nil
+  }
+return int64(*p), nil
+}
+// Indicates the network context of a service recording an annotation with two
+// exceptions.
+// 
+// When a BinaryAnnotation, and key is CLIENT_ADDR or SERVER_ADDR,
+// the endpoint indicates the source or destination of an RPC. This exception
+// allows zipkin to display network context of uninstrumented services, or
+// clients such as web browsers.
+// 
+// Attributes:
+//  - Ipv4: IPv4 host address packed into 4 bytes.
+// 
+// Ex for the ip 1.2.3.4, it would be (1 << 24) | (2 << 16) | (3 << 8) | 4
+//  - Port: IPv4 port or 0, if unknown.
+// 
+// Note: this is to be treated as an unsigned integer, so watch for negatives.
+//  - ServiceName: Classifier of a source or destination in lowercase, such as "zipkin-web".
+// 
+// This is the primary parameter for trace lookup, so should be intuitive as
+// possible, for example, matching names in service discovery.
+// 
+// Conventionally, when the service name isn't known, service_name = "unknown".
+// However, it is also permissible to set service_name = "" (empty string).
+// The difference in the latter usage is that the span will not be queryable
+// by service name unless more information is added to the span with non-empty
+// service name, e.g. an additional annotation from the server.
+// 
+// Particularly clients may not have a reliable service name at ingest. One
+// approach is to set service_name to "" at ingest, and later assign a
+// better label based on binary annotations, such as user agent.
+//  - Ipv6: IPv6 host address packed into 16 bytes. Ex Inet6Address.getBytes()
+type Endpoint struct {
+  Ipv4 int32 `thrift:"ipv4,1" db:"ipv4" json:"ipv4"`
+  Port int16 `thrift:"port,2" db:"port" json:"port"`
+  ServiceName string `thrift:"service_name,3" db:"service_name" json:"service_name"`
+  Ipv6 []byte `thrift:"ipv6,4" db:"ipv6" json:"ipv6,omitempty"`
+}
+
+func NewEndpoint() *Endpoint {
+  return &Endpoint{}
+}
+
+
+func (p *Endpoint) GetIpv4() int32 {
+  return p.Ipv4
+}
+
+func (p *Endpoint) GetPort() int16 {
+  return p.Port
+}
+
+func (p *Endpoint) GetServiceName() string {
+  return p.ServiceName
+}
+var Endpoint_Ipv6_DEFAULT []byte
+
+func (p *Endpoint) GetIpv6() []byte {
+  return p.Ipv6
+}
+func (p *Endpoint) IsSetIpv6() bool {
+  return p.Ipv6 != nil
+}
+
+func (p *Endpoint) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 1:
+      if fieldTypeId == thrift.I32 {
+        if err := p.ReadField1(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 2:
+      if fieldTypeId == thrift.I16 {
+        if err := p.ReadField2(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 3:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField3(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 4:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField4(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *Endpoint)  ReadField1(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI32(); err != nil {
+  return thrift.PrependError("error reading field 1: ", err)
+} else {
+  p.Ipv4 = v
+}
+  return nil
+}
+
+func (p *Endpoint)  ReadField2(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI16(); err != nil {
+  return thrift.PrependError("error reading field 2: ", err)
+} else {
+  p.Port = v
+}
+  return nil
+}
+
+func (p *Endpoint)  ReadField3(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadString(); err != nil {
+  return thrift.PrependError("error reading field 3: ", err)
+} else {
+  p.ServiceName = v
+}
+  return nil
+}
+
+func (p *Endpoint)  ReadField4(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadBinary(); err != nil {
+  return thrift.PrependError("error reading field 4: ", err)
+} else {
+  p.Ipv6 = v
+}
+  return nil
+}
+
+func (p *Endpoint) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("Endpoint"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField1(oprot); err != nil { return err }
+    if err := p.writeField2(oprot); err != nil { return err }
+    if err := p.writeField3(oprot); err != nil { return err }
+    if err := p.writeField4(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *Endpoint) writeField1(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("ipv4", thrift.I32, 1); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:ipv4: ", p), err) }
+  if err := oprot.WriteI32(int32(p.Ipv4)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.ipv4 (1) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 1:ipv4: ", p), err) }
+  return err
+}
+
+func (p *Endpoint) writeField2(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("port", thrift.I16, 2); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:port: ", p), err) }
+  if err := oprot.WriteI16(int16(p.Port)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.port (2) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 2:port: ", p), err) }
+  return err
+}
+
+func (p *Endpoint) writeField3(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("service_name", thrift.STRING, 3); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:service_name: ", p), err) }
+  if err := oprot.WriteString(string(p.ServiceName)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.service_name (3) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 3:service_name: ", p), err) }
+  return err
+}
+
+func (p *Endpoint) writeField4(oprot thrift.TProtocol) (err error) {
+  if p.IsSetIpv6() {
+    if err := oprot.WriteFieldBegin("ipv6", thrift.STRING, 4); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:ipv6: ", p), err) }
+    if err := oprot.WriteBinary(p.Ipv6); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.ipv6 (4) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 4:ipv6: ", p), err) }
+  }
+  return err
+}
+
+func (p *Endpoint) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("Endpoint(%+v)", *p)
+}
+
+// Associates an event that explains latency with a timestamp.
+// 
+// Unlike log statements, annotations are often codes: for example "sr".
+// 
+// Attributes:
+//  - Timestamp: Microseconds from epoch.
+// 
+// This value should use the most precise value possible. For example,
+// gettimeofday or multiplying currentTimeMillis by 1000.
+//  - Value: Usually a short tag indicating an event, like "sr" or "finagle.retry".
+//  - Host: The host that recorded the value, primarily for query by service name.
+type Annotation struct {
+  Timestamp int64 `thrift:"timestamp,1" db:"timestamp" json:"timestamp"`
+  Value string `thrift:"value,2" db:"value" json:"value"`
+  Host *Endpoint `thrift:"host,3" db:"host" json:"host,omitempty"`
+}
+
+func NewAnnotation() *Annotation {
+  return &Annotation{}
+}
+
+
+func (p *Annotation) GetTimestamp() int64 {
+  return p.Timestamp
+}
+
+func (p *Annotation) GetValue() string {
+  return p.Value
+}
+var Annotation_Host_DEFAULT *Endpoint
+func (p *Annotation) GetHost() *Endpoint {
+  if !p.IsSetHost() {
+    return Annotation_Host_DEFAULT
+  }
+return p.Host
+}
+func (p *Annotation) IsSetHost() bool {
+  return p.Host != nil
+}
+
+func (p *Annotation) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 1:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField1(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 2:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField2(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 3:
+      if fieldTypeId == thrift.STRUCT {
+        if err := p.ReadField3(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *Annotation)  ReadField1(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 1: ", err)
+} else {
+  p.Timestamp = v
+}
+  return nil
+}
+
+func (p *Annotation)  ReadField2(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadString(); err != nil {
+  return thrift.PrependError("error reading field 2: ", err)
+} else {
+  p.Value = v
+}
+  return nil
+}
+
+func (p *Annotation)  ReadField3(iprot thrift.TProtocol) error {
+  p.Host = &Endpoint{}
+  if err := p.Host.Read(iprot); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", p.Host), err)
+  }
+  return nil
+}
+
+func (p *Annotation) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("Annotation"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField1(oprot); err != nil { return err }
+    if err := p.writeField2(oprot); err != nil { return err }
+    if err := p.writeField3(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *Annotation) writeField1(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("timestamp", thrift.I64, 1); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:timestamp: ", p), err) }
+  if err := oprot.WriteI64(int64(p.Timestamp)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.timestamp (1) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 1:timestamp: ", p), err) }
+  return err
+}
+
+func (p *Annotation) writeField2(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("value", thrift.STRING, 2); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:value: ", p), err) }
+  if err := oprot.WriteString(string(p.Value)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.value (2) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 2:value: ", p), err) }
+  return err
+}
+
+func (p *Annotation) writeField3(oprot thrift.TProtocol) (err error) {
+  if p.IsSetHost() {
+    if err := oprot.WriteFieldBegin("host", thrift.STRUCT, 3); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:host: ", p), err) }
+    if err := p.Host.Write(oprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", p.Host), err)
+    }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 3:host: ", p), err) }
+  }
+  return err
+}
+
+func (p *Annotation) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("Annotation(%+v)", *p)
+}
+
+// Binary annotations are tags applied to a Span to give it context. For
+// example, a binary annotation of HTTP_PATH ("http.path") could the path
+// to a resource in a RPC call.
+// 
+// Binary annotations of type STRING are always queryable, though more a
+// historical implementation detail than a structural concern.
+// 
+// Binary annotations can repeat, and vary on the host. Similar to Annotation,
+// the host indicates who logged the event. This allows you to tell the
+// difference between the client and server side of the same key. For example,
+// the key "http.path" might be different on the client and server side due to
+// rewriting, like "/api/v1/myresource" vs "/myresource. Via the host field,
+// you can see the different points of view, which often help in debugging.
+// 
+// Attributes:
+//  - Key: Name used to lookup spans, such as "http.path" or "finagle.version".
+//  - Value: Serialized thrift bytes, in TBinaryProtocol format.
+// 
+// For legacy reasons, byte order is big-endian. See THRIFT-3217.
+//  - AnnotationType: The thrift type of value, most often STRING.
+// 
+// annotation_type shouldn't vary for the same key.
+//  - Host: The host that recorded value, allowing query by service name or address.
+// 
+// There are two exceptions: when key is "ca" or "sa", this is the source or
+// destination of an RPC. This exception allows zipkin to display network
+// context of uninstrumented services, such as browsers or databases.
+type BinaryAnnotation struct {
+  Key string `thrift:"key,1" db:"key" json:"key"`
+  Value []byte `thrift:"value,2" db:"value" json:"value"`
+  AnnotationType AnnotationType `thrift:"annotation_type,3" db:"annotation_type" json:"annotation_type"`
+  Host *Endpoint `thrift:"host,4" db:"host" json:"host,omitempty"`
+}
+
+func NewBinaryAnnotation() *BinaryAnnotation {
+  return &BinaryAnnotation{}
+}
+
+
+func (p *BinaryAnnotation) GetKey() string {
+  return p.Key
+}
+
+func (p *BinaryAnnotation) GetValue() []byte {
+  return p.Value
+}
+
+func (p *BinaryAnnotation) GetAnnotationType() AnnotationType {
+  return p.AnnotationType
+}
+var BinaryAnnotation_Host_DEFAULT *Endpoint
+func (p *BinaryAnnotation) GetHost() *Endpoint {
+  if !p.IsSetHost() {
+    return BinaryAnnotation_Host_DEFAULT
+  }
+return p.Host
+}
+func (p *BinaryAnnotation) IsSetHost() bool {
+  return p.Host != nil
+}
+
+func (p *BinaryAnnotation) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 1:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField1(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 2:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField2(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 3:
+      if fieldTypeId == thrift.I32 {
+        if err := p.ReadField3(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 4:
+      if fieldTypeId == thrift.STRUCT {
+        if err := p.ReadField4(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *BinaryAnnotation)  ReadField1(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadString(); err != nil {
+  return thrift.PrependError("error reading field 1: ", err)
+} else {
+  p.Key = v
+}
+  return nil
+}
+
+func (p *BinaryAnnotation)  ReadField2(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadBinary(); err != nil {
+  return thrift.PrependError("error reading field 2: ", err)
+} else {
+  p.Value = v
+}
+  return nil
+}
+
+func (p *BinaryAnnotation)  ReadField3(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI32(); err != nil {
+  return thrift.PrependError("error reading field 3: ", err)
+} else {
+  temp := AnnotationType(v)
+  p.AnnotationType = temp
+}
+  return nil
+}
+
+func (p *BinaryAnnotation)  ReadField4(iprot thrift.TProtocol) error {
+  p.Host = &Endpoint{}
+  if err := p.Host.Read(iprot); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", p.Host), err)
+  }
+  return nil
+}
+
+func (p *BinaryAnnotation) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("BinaryAnnotation"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField1(oprot); err != nil { return err }
+    if err := p.writeField2(oprot); err != nil { return err }
+    if err := p.writeField3(oprot); err != nil { return err }
+    if err := p.writeField4(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *BinaryAnnotation) writeField1(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("key", thrift.STRING, 1); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:key: ", p), err) }
+  if err := oprot.WriteString(string(p.Key)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.key (1) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 1:key: ", p), err) }
+  return err
+}
+
+func (p *BinaryAnnotation) writeField2(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("value", thrift.STRING, 2); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:value: ", p), err) }
+  if err := oprot.WriteBinary(p.Value); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.value (2) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 2:value: ", p), err) }
+  return err
+}
+
+func (p *BinaryAnnotation) writeField3(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("annotation_type", thrift.I32, 3); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:annotation_type: ", p), err) }
+  if err := oprot.WriteI32(int32(p.AnnotationType)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.annotation_type (3) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 3:annotation_type: ", p), err) }
+  return err
+}
+
+func (p *BinaryAnnotation) writeField4(oprot thrift.TProtocol) (err error) {
+  if p.IsSetHost() {
+    if err := oprot.WriteFieldBegin("host", thrift.STRUCT, 4); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:host: ", p), err) }
+    if err := p.Host.Write(oprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", p.Host), err)
+    }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 4:host: ", p), err) }
+  }
+  return err
+}
+
+func (p *BinaryAnnotation) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("BinaryAnnotation(%+v)", *p)
+}
+
+// A trace is a series of spans (often RPC calls) which form a latency tree.
+// 
+// Spans are usually created by instrumentation in RPC clients or servers, but
+// can also represent in-process activity. Annotations in spans are similar to
+// log statements, and are sometimes created directly by application developers
+// to indicate events of interest, such as a cache miss.
+// 
+// The root span is where parent_id = Nil; it usually has the longest duration
+// in the trace.
+// 
+// Span identifiers are packed into i64s, but should be treated opaquely.
+// String encoding is fixed-width lower-hex, to avoid signed interpretation.
+// 
+// Attributes:
+//  - TraceID: Unique 8-byte identifier for a trace, set on all spans within it.
+//  - Name: Span name in lowercase, rpc method for example. Conventionally, when the
+// span name isn't known, name = "unknown".
+//  - ID: Unique 8-byte identifier of this span within a trace. A span is uniquely
+// identified in storage by (trace_id, id).
+//  - ParentID: The parent's Span.id; absent if this the root span in a trace.
+//  - Annotations: Associates events that explain latency with a timestamp. Unlike log
+// statements, annotations are often codes: for example SERVER_RECV("sr").
+// Annotations are sorted ascending by timestamp.
+//  - BinaryAnnotations: Tags a span with context, usually to support query or aggregation. For
+// example, a binary annotation key could be "http.path".
+//  - Debug: True is a request to store this span even if it overrides sampling policy.
+//  - Timestamp: Epoch microseconds of the start of this span, absent if this an incomplete
+// span.
+// 
+// This value should be set directly by instrumentation, using the most
+// precise value possible. For example, gettimeofday or syncing nanoTime
+// against a tick of currentTimeMillis.
+// 
+// For compatibility with instrumentation that precede this field, collectors
+// or span stores can derive this via Annotation.timestamp.
+// For example, SERVER_RECV.timestamp or CLIENT_SEND.timestamp.
+// 
+// Timestamp is nullable for input only. Spans without a timestamp cannot be
+// presented in a timeline: Span stores should not output spans missing a
+// timestamp.
+// 
+// There are two known edge-cases where this could be absent: both cases
+// exist when a collector receives a span in parts and a binary annotation
+// precedes a timestamp. This is possible when..
+//  - The span is in-flight (ex not yet received a timestamp)
+//  - The span's start event was lost
+//  - Duration: Measurement in microseconds of the critical path, if known. Durations of
+// less than one microsecond must be rounded up to 1 microsecond.
+// 
+// This value should be set directly, as opposed to implicitly via annotation
+// timestamps. Doing so encourages precision decoupled from problems of
+// clocks, such as skew or NTP updates causing time to move backwards.
+// 
+// For compatibility with instrumentation that precede this field, collectors
+// or span stores can derive this by subtracting Annotation.timestamp.
+// For example, SERVER_SEND.timestamp - SERVER_RECV.timestamp.
+// 
+// If this field is persisted as unset, zipkin will continue to work, except
+// duration query support will be implementation-specific. Similarly, setting
+// this field non-atomically is implementation-specific.
+// 
+// This field is i64 vs i32 to support spans longer than 35 minutes.
+//  - TraceIDHigh: Optional unique 8-byte additional identifier for a trace. If non zero, this
+// means the trace uses 128 bit traceIds instead of 64 bit.
+type Span struct {
+  TraceID int64 `thrift:"trace_id,1" db:"trace_id" json:"trace_id"`
+  // unused field # 2
+  Name string `thrift:"name,3" db:"name" json:"name"`
+  ID int64 `thrift:"id,4" db:"id" json:"id"`
+  ParentID *int64 `thrift:"parent_id,5" db:"parent_id" json:"parent_id,omitempty"`
+  Annotations []*Annotation `thrift:"annotations,6" db:"annotations" json:"annotations"`
+  // unused field # 7
+  BinaryAnnotations []*BinaryAnnotation `thrift:"binary_annotations,8" db:"binary_annotations" json:"binary_annotations"`
+  Debug bool `thrift:"debug,9" db:"debug" json:"debug,omitempty"`
+  Timestamp *int64 `thrift:"timestamp,10" db:"timestamp" json:"timestamp,omitempty"`
+  Duration *int64 `thrift:"duration,11" db:"duration" json:"duration,omitempty"`
+  TraceIDHigh *int64 `thrift:"trace_id_high,12" db:"trace_id_high" json:"trace_id_high,omitempty"`
+}
+
+func NewSpan() *Span {
+  return &Span{}
+}
+
+
+func (p *Span) GetTraceID() int64 {
+  return p.TraceID
+}
+
+func (p *Span) GetName() string {
+  return p.Name
+}
+
+func (p *Span) GetID() int64 {
+  return p.ID
+}
+var Span_ParentID_DEFAULT int64
+func (p *Span) GetParentID() int64 {
+  if !p.IsSetParentID() {
+    return Span_ParentID_DEFAULT
+  }
+return *p.ParentID
+}
+
+func (p *Span) GetAnnotations() []*Annotation {
+  return p.Annotations
+}
+
+func (p *Span) GetBinaryAnnotations() []*BinaryAnnotation {
+  return p.BinaryAnnotations
+}
+var Span_Debug_DEFAULT bool = false
+
+func (p *Span) GetDebug() bool {
+  return p.Debug
+}
+var Span_Timestamp_DEFAULT int64
+func (p *Span) GetTimestamp() int64 {
+  if !p.IsSetTimestamp() {
+    return Span_Timestamp_DEFAULT
+  }
+return *p.Timestamp
+}
+var Span_Duration_DEFAULT int64
+func (p *Span) GetDuration() int64 {
+  if !p.IsSetDuration() {
+    return Span_Duration_DEFAULT
+  }
+return *p.Duration
+}
+var Span_TraceIDHigh_DEFAULT int64
+func (p *Span) GetTraceIDHigh() int64 {
+  if !p.IsSetTraceIDHigh() {
+    return Span_TraceIDHigh_DEFAULT
+  }
+return *p.TraceIDHigh
+}
+func (p *Span) IsSetParentID() bool {
+  return p.ParentID != nil
+}
+
+func (p *Span) IsSetDebug() bool {
+  return p.Debug != Span_Debug_DEFAULT
+}
+
+func (p *Span) IsSetTimestamp() bool {
+  return p.Timestamp != nil
+}
+
+func (p *Span) IsSetDuration() bool {
+  return p.Duration != nil
+}
+
+func (p *Span) IsSetTraceIDHigh() bool {
+  return p.TraceIDHigh != nil
+}
+
+func (p *Span) Read(iprot thrift.TProtocol) error {
+  if _, err := iprot.ReadStructBegin(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
+  }
+
+
+  for {
+    _, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
+    if err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
+    }
+    if fieldTypeId == thrift.STOP { break; }
+    switch fieldId {
+    case 1:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField1(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 3:
+      if fieldTypeId == thrift.STRING {
+        if err := p.ReadField3(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 4:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField4(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 5:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField5(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 6:
+      if fieldTypeId == thrift.LIST {
+        if err := p.ReadField6(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 8:
+      if fieldTypeId == thrift.LIST {
+        if err := p.ReadField8(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 9:
+      if fieldTypeId == thrift.BOOL {
+        if err := p.ReadField9(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 10:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField10(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 11:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField11(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    case 12:
+      if fieldTypeId == thrift.I64 {
+        if err := p.ReadField12(iprot); err != nil {
+          return err
+        }
+      } else {
+        if err := iprot.Skip(fieldTypeId); err != nil {
+          return err
+        }
+      }
+    default:
+      if err := iprot.Skip(fieldTypeId); err != nil {
+        return err
+      }
+    }
+    if err := iprot.ReadFieldEnd(); err != nil {
+      return err
+    }
+  }
+  if err := iprot.ReadStructEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
+  }
+  return nil
+}
+
+func (p *Span)  ReadField1(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 1: ", err)
+} else {
+  p.TraceID = v
+}
+  return nil
+}
+
+func (p *Span)  ReadField3(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadString(); err != nil {
+  return thrift.PrependError("error reading field 3: ", err)
+} else {
+  p.Name = v
+}
+  return nil
+}
+
+func (p *Span)  ReadField4(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 4: ", err)
+} else {
+  p.ID = v
+}
+  return nil
+}
+
+func (p *Span)  ReadField5(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 5: ", err)
+} else {
+  p.ParentID = &v
+}
+  return nil
+}
+
+func (p *Span)  ReadField6(iprot thrift.TProtocol) error {
+  _, size, err := iprot.ReadListBegin()
+  if err != nil {
+    return thrift.PrependError("error reading list begin: ", err)
+  }
+  tSlice := make([]*Annotation, 0, size)
+  p.Annotations =  tSlice
+  for i := 0; i < size; i ++ {
+    _elem0 := &Annotation{}
+    if err := _elem0.Read(iprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", _elem0), err)
+    }
+    p.Annotations = append(p.Annotations, _elem0)
+  }
+  if err := iprot.ReadListEnd(); err != nil {
+    return thrift.PrependError("error reading list end: ", err)
+  }
+  return nil
+}
+
+func (p *Span)  ReadField8(iprot thrift.TProtocol) error {
+  _, size, err := iprot.ReadListBegin()
+  if err != nil {
+    return thrift.PrependError("error reading list begin: ", err)
+  }
+  tSlice := make([]*BinaryAnnotation, 0, size)
+  p.BinaryAnnotations =  tSlice
+  for i := 0; i < size; i ++ {
+    _elem1 := &BinaryAnnotation{}
+    if err := _elem1.Read(iprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", _elem1), err)
+    }
+    p.BinaryAnnotations = append(p.BinaryAnnotations, _elem1)
+  }
+  if err := iprot.ReadListEnd(); err != nil {
+    return thrift.PrependError("error reading list end: ", err)
+  }
+  return nil
+}
+
+func (p *Span)  ReadField9(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadBool(); err != nil {
+  return thrift.PrependError("error reading field 9: ", err)
+} else {
+  p.Debug = v
+}
+  return nil
+}
+
+func (p *Span)  ReadField10(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 10: ", err)
+} else {
+  p.Timestamp = &v
+}
+  return nil
+}
+
+func (p *Span)  ReadField11(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 11: ", err)
+} else {
+  p.Duration = &v
+}
+  return nil
+}
+
+func (p *Span)  ReadField12(iprot thrift.TProtocol) error {
+  if v, err := iprot.ReadI64(); err != nil {
+  return thrift.PrependError("error reading field 12: ", err)
+} else {
+  p.TraceIDHigh = &v
+}
+  return nil
+}
+
+func (p *Span) Write(oprot thrift.TProtocol) error {
+  if err := oprot.WriteStructBegin("Span"); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err) }
+  if p != nil {
+    if err := p.writeField1(oprot); err != nil { return err }
+    if err := p.writeField3(oprot); err != nil { return err }
+    if err := p.writeField4(oprot); err != nil { return err }
+    if err := p.writeField5(oprot); err != nil { return err }
+    if err := p.writeField6(oprot); err != nil { return err }
+    if err := p.writeField8(oprot); err != nil { return err }
+    if err := p.writeField9(oprot); err != nil { return err }
+    if err := p.writeField10(oprot); err != nil { return err }
+    if err := p.writeField11(oprot); err != nil { return err }
+    if err := p.writeField12(oprot); err != nil { return err }
+  }
+  if err := oprot.WriteFieldStop(); err != nil {
+    return thrift.PrependError("write field stop error: ", err) }
+  if err := oprot.WriteStructEnd(); err != nil {
+    return thrift.PrependError("write struct stop error: ", err) }
+  return nil
+}
+
+func (p *Span) writeField1(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("trace_id", thrift.I64, 1); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:trace_id: ", p), err) }
+  if err := oprot.WriteI64(int64(p.TraceID)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.trace_id (1) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 1:trace_id: ", p), err) }
+  return err
+}
+
+func (p *Span) writeField3(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("name", thrift.STRING, 3); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:name: ", p), err) }
+  if err := oprot.WriteString(string(p.Name)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.name (3) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 3:name: ", p), err) }
+  return err
+}
+
+func (p *Span) writeField4(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("id", thrift.I64, 4); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:id: ", p), err) }
+  if err := oprot.WriteI64(int64(p.ID)); err != nil {
+  return thrift.PrependError(fmt.Sprintf("%T.id (4) field write error: ", p), err) }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 4:id: ", p), err) }
+  return err
+}
+
+func (p *Span) writeField5(oprot thrift.TProtocol) (err error) {
+  if p.IsSetParentID() {
+    if err := oprot.WriteFieldBegin("parent_id", thrift.I64, 5); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 5:parent_id: ", p), err) }
+    if err := oprot.WriteI64(int64(*p.ParentID)); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.parent_id (5) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 5:parent_id: ", p), err) }
+  }
+  return err
+}
+
+func (p *Span) writeField6(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("annotations", thrift.LIST, 6); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 6:annotations: ", p), err) }
+  if err := oprot.WriteListBegin(thrift.STRUCT, len(p.Annotations)); err != nil {
+    return thrift.PrependError("error writing list begin: ", err)
+  }
+  for _, v := range p.Annotations {
+    if err := v.Write(oprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", v), err)
+    }
+  }
+  if err := oprot.WriteListEnd(); err != nil {
+    return thrift.PrependError("error writing list end: ", err)
+  }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 6:annotations: ", p), err) }
+  return err
+}
+
+func (p *Span) writeField8(oprot thrift.TProtocol) (err error) {
+  if err := oprot.WriteFieldBegin("binary_annotations", thrift.LIST, 8); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field begin error 8:binary_annotations: ", p), err) }
+  if err := oprot.WriteListBegin(thrift.STRUCT, len(p.BinaryAnnotations)); err != nil {
+    return thrift.PrependError("error writing list begin: ", err)
+  }
+  for _, v := range p.BinaryAnnotations {
+    if err := v.Write(oprot); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", v), err)
+    }
+  }
+  if err := oprot.WriteListEnd(); err != nil {
+    return thrift.PrependError("error writing list end: ", err)
+  }
+  if err := oprot.WriteFieldEnd(); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T write field end error 8:binary_annotations: ", p), err) }
+  return err
+}
+
+func (p *Span) writeField9(oprot thrift.TProtocol) (err error) {
+  if p.IsSetDebug() {
+    if err := oprot.WriteFieldBegin("debug", thrift.BOOL, 9); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 9:debug: ", p), err) }
+    if err := oprot.WriteBool(bool(p.Debug)); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.debug (9) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 9:debug: ", p), err) }
+  }
+  return err
+}
+
+func (p *Span) writeField10(oprot thrift.TProtocol) (err error) {
+  if p.IsSetTimestamp() {
+    if err := oprot.WriteFieldBegin("timestamp", thrift.I64, 10); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 10:timestamp: ", p), err) }
+    if err := oprot.WriteI64(int64(*p.Timestamp)); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.timestamp (10) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 10:timestamp: ", p), err) }
+  }
+  return err
+}
+
+func (p *Span) writeField11(oprot thrift.TProtocol) (err error) {
+  if p.IsSetDuration() {
+    if err := oprot.WriteFieldBegin("duration", thrift.I64, 11); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 11:duration: ", p), err) }
+    if err := oprot.WriteI64(int64(*p.Duration)); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.duration (11) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 11:duration: ", p), err) }
+  }
+  return err
+}
+
+func (p *Span) writeField12(oprot thrift.TProtocol) (err error) {
+  if p.IsSetTraceIDHigh() {
+    if err := oprot.WriteFieldBegin("trace_id_high", thrift.I64, 12); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field begin error 12:trace_id_high: ", p), err) }
+    if err := oprot.WriteI64(int64(*p.TraceIDHigh)); err != nil {
+    return thrift.PrependError(fmt.Sprintf("%T.trace_id_high (12) field write error: ", p), err) }
+    if err := oprot.WriteFieldEnd(); err != nil {
+      return thrift.PrependError(fmt.Sprintf("%T write field end error 12:trace_id_high: ", p), err) }
+  }
+  return err
+}
+
+func (p *Span) String() string {
+  if p == nil {
+    return "<nil>"
+  }
+  return fmt.Sprintf("Span(%+v)", *p)
+}
+
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/tracer.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/tracer.go
similarity index 99%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/tracer.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/tracer.go
index dd8274df0..6d26aa2ca 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/tracer.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/tracer.go
@@ -7,8 +7,8 @@ import (
 	opentracing "github.com/opentracing/opentracing-go"
 	"github.com/opentracing/opentracing-go/ext"
 
-	"github.com/openzipkin/zipkin-go-opentracing/flag"
 	otobserver "github.com/opentracing-contrib/go-observer"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/flag"
 )
 
 // ErrInvalidEndpoint will be thrown if hostPort parameter is corrupted or host
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/types/traceid.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/types/traceid.go
similarity index 83%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/types/traceid.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/types/traceid.go
index 18a1b5925..a8058ba45 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/types/traceid.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/types/traceid.go
@@ -27,11 +27,9 @@ func TraceIDFromHex(h string) (t TraceID, err error) {
 // ToHex outputs the 128-bit traceID as hex string.
 func (t TraceID) ToHex() string {
 	if t.High == 0 {
-		return strconv.FormatUint(t.Low, 16)
+		return fmt.Sprintf("%016x", t.Low)
 	}
-	return fmt.Sprintf(
-		"%016s%016s", strconv.FormatUint(t.High, 16), strconv.FormatUint(t.Low, 16),
-	)
+	return fmt.Sprintf("%016x%016x", t.High, t.Low)
 }
 
 // Empty returns if TraceID has zero value
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/util.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/util.go
similarity index 100%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/util.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/util.go
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/wire/carrier.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/carrier.go
similarity index 93%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/wire/carrier.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/carrier.go
index 79364998c..ab9e9b8c2 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/wire/carrier.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/carrier.go
@@ -1,8 +1,8 @@
 package wire
 
 import (
-	"github.com/openzipkin/zipkin-go-opentracing/flag"
-	"github.com/openzipkin/zipkin-go-opentracing/types"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/flag"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/types"
 )
 
 // ProtobufCarrier is a DelegatingCarrier that uses protocol buffers as the
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/wire/gen.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/gen.go
similarity index 53%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/wire/gen.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/gen.go
index 86242a9fe..0eb355bab 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/wire/gen.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/gen.go
@@ -1,6 +1,6 @@
 package wire
 
-//go:generate protoc --gogofaster_out=$GOPATH/src/github.com/openzipkin/zipkin-go-opentracing/wire wire.proto
+//go:generate protoc --gogofaster_out=$GOPATH/src wire.proto
 
 // Run `go get github.com/gogo/protobuf/protoc-gen-gogofaster` to install the
 // gogofaster generator binary.
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/wire/wire.pb.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/wire.pb.go
similarity index 88%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/wire/wire.pb.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/wire.pb.go
index df2c11989..9aa7b2c90 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/wire/wire.pb.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/wire/wire.pb.go
@@ -624,24 +624,26 @@ var (
 func init() { proto.RegisterFile("wire.proto", fileDescriptorWire) }
 
 var fileDescriptorWire = []byte{
-	// 300 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x2a, 0xcf, 0x2c, 0x4a,
-	0xd5, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x12, 0xa9, 0xca, 0x2c, 0xc8, 0xce, 0xcc, 0x2b, 0x29,
-	0x4a, 0x4c, 0x4e, 0x2d, 0x8a, 0x4f, 0xcf, 0xd7, 0x03, 0xc9, 0x29, 0x5d, 0x63, 0xe2, 0xe2, 0x0e,
-	0x01, 0x0b, 0x05, 0x97, 0x24, 0x96, 0xa4, 0x0a, 0x49, 0x72, 0x71, 0x80, 0x55, 0xc4, 0x67, 0xa6,
-	0x48, 0x30, 0x2a, 0x30, 0x6a, 0xb0, 0x05, 0xb1, 0x83, 0xf9, 0x9e, 0x29, 0x42, 0xe2, 0x5c, 0xec,
-	0xc5, 0x05, 0x89, 0x79, 0x20, 0x19, 0x26, 0xb0, 0x0c, 0x1b, 0x88, 0xeb, 0x99, 0x22, 0x24, 0xc1,
-	0xc5, 0x5e, 0x9c, 0x98, 0x5b, 0x90, 0x93, 0x9a, 0x22, 0xc1, 0xac, 0xc0, 0xa8, 0xc1, 0x11, 0x04,
-	0xe3, 0x0a, 0x45, 0x70, 0xf1, 0x26, 0x25, 0xa6, 0xa7, 0x27, 0xa6, 0xa7, 0xc6, 0x67, 0x96, 0xa4,
-	0xe6, 0x16, 0x4b, 0xb0, 0x28, 0x30, 0x6b, 0x70, 0x1b, 0x19, 0xeb, 0x61, 0x73, 0x8b, 0x1e, 0x92,
-	0x3b, 0xf4, 0x9c, 0x20, 0xda, 0x3c, 0x41, 0xba, 0x5c, 0xf3, 0x4a, 0x8a, 0x2a, 0x83, 0x78, 0x92,
-	0x90, 0x84, 0x84, 0x94, 0xb8, 0x78, 0x61, 0xee, 0x8c, 0xcf, 0xc8, 0x4c, 0xcf, 0x90, 0x10, 0x01,
-	0x3b, 0x89, 0x1b, 0xea, 0x58, 0x8f, 0xcc, 0xf4, 0x0c, 0x21, 0x15, 0x2e, 0xbe, 0x82, 0xc4, 0xa2,
-	0xd4, 0xbc, 0x92, 0x78, 0x98, 0xbb, 0x45, 0xc1, 0x8a, 0x78, 0x20, 0xa2, 0xc1, 0x10, 0xd7, 0x8b,
-	0x70, 0xb1, 0xa6, 0xe5, 0x24, 0xa6, 0x17, 0x4b, 0x88, 0x81, 0x25, 0x21, 0x1c, 0x29, 0x7b, 0x2e,
-	0x41, 0x0c, 0x27, 0x08, 0x09, 0x70, 0x31, 0x67, 0xa7, 0x56, 0x82, 0xc3, 0x85, 0x33, 0x08, 0xc4,
-	0x04, 0x69, 0x2e, 0x4b, 0xcc, 0x29, 0x4d, 0x05, 0x87, 0x08, 0x67, 0x10, 0x84, 0x63, 0xc5, 0x64,
-	0xc1, 0xe8, 0x24, 0x76, 0xe2, 0x91, 0x1c, 0xe3, 0x85, 0x47, 0x72, 0x8c, 0x0f, 0x1e, 0xc9, 0x31,
-	0x4e, 0x78, 0x2c, 0xc7, 0x10, 0xc5, 0x02, 0xf2, 0x64, 0x12, 0x1b, 0x38, 0x36, 0x8c, 0x01, 0x01,
-	0x00, 0x00, 0xff, 0xff, 0xb5, 0x5e, 0x0d, 0x33, 0x9b, 0x01, 0x00, 0x00,
+	// 325 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x6c, 0x91, 0xcf, 0x4a, 0x03, 0x31,
+	0x18, 0xc4, 0x4d, 0xab, 0xfd, 0xf3, 0xb5, 0x15, 0x0d, 0x55, 0x57, 0x0f, 0x4b, 0x29, 0x1e, 0x7a,
+	0xe9, 0x56, 0xec, 0x45, 0xbc, 0x08, 0x05, 0xc1, 0x5e, 0xb7, 0x1e, 0xc4, 0xcb, 0x92, 0xed, 0xc6,
+	0x6c, 0x68, 0x9b, 0x84, 0x6c, 0xaa, 0xd4, 0xa7, 0xf0, 0xb1, 0x3c, 0x7a, 0xf2, 0x2c, 0xf5, 0x45,
+	0x24, 0x89, 0x85, 0x82, 0x9e, 0x76, 0x67, 0xe6, 0x1b, 0xf8, 0x31, 0x01, 0x78, 0xe1, 0x9a, 0x46,
+	0x4a, 0x4b, 0x23, 0x71, 0xfb, 0x95, 0xab, 0x19, 0x17, 0x46, 0x93, 0x29, 0xd5, 0x09, 0x93, 0x91,
+	0xcd, 0xba, 0x9f, 0x25, 0x68, 0xdc, 0x3b, 0x6b, 0x62, 0x88, 0xa1, 0xf8, 0x14, 0x6a, 0xee, 0x22,
+	0xe1, 0x59, 0x80, 0x3a, 0xa8, 0x57, 0x89, 0xab, 0x4e, 0x8f, 0x33, 0x7c, 0x02, 0xd5, 0x42, 0x11,
+	0x61, 0x93, 0x92, 0x4b, 0x2a, 0x56, 0x8e, 0x33, 0x1c, 0x40, 0xb5, 0x20, 0x0b, 0x35, 0xa7, 0x59,
+	0x50, 0xee, 0xa0, 0x5e, 0x2d, 0xde, 0x48, 0xfc, 0x00, 0xad, 0x94, 0x30, 0x46, 0x18, 0x4d, 0xb8,
+	0xa1, 0x8b, 0x22, 0xd8, 0xed, 0x94, 0x7b, 0x8d, 0xcb, 0x61, 0xf4, 0x1f, 0x4b, 0xb4, 0xc5, 0x11,
+	0x8d, 0x7c, 0x6d, 0x6c, 0x5b, 0xb7, 0xc2, 0xe8, 0x55, 0xdc, 0x4c, 0xb7, 0x2c, 0xdc, 0x85, 0xd6,
+	0x86, 0x33, 0xc9, 0x39, 0xcb, 0x83, 0xb6, 0x43, 0x6a, 0xfc, 0xc2, 0xde, 0x71, 0x96, 0xe3, 0x73,
+	0xd8, 0x57, 0x44, 0x53, 0x61, 0x92, 0x0d, 0xf7, 0x91, 0x3b, 0x6a, 0x7a, 0x77, 0xe2, 0xe9, 0xdb,
+	0xb0, 0xf7, 0x34, 0x27, 0xac, 0x08, 0x8e, 0x5d, 0xe8, 0xc5, 0xd9, 0x0d, 0x1c, 0xfe, 0x41, 0xc0,
+	0x07, 0x50, 0x9e, 0xd1, 0x95, 0xdb, 0xa5, 0x1e, 0xdb, 0x5f, 0x5b, 0x7e, 0x26, 0xf3, 0x25, 0x75,
+	0x8b, 0xd4, 0x63, 0x2f, 0xae, 0x4b, 0x57, 0x68, 0x34, 0x7a, 0x5f, 0x87, 0xe8, 0x63, 0x1d, 0xa2,
+	0xaf, 0x75, 0x88, 0xde, 0xbe, 0xc3, 0x9d, 0xc7, 0x0b, 0xc6, 0x4d, 0xbe, 0x4c, 0xa3, 0xa9, 0x5c,
+	0x0c, 0xa4, 0xa2, 0xc2, 0x6f, 0x30, 0xf0, 0x9f, 0x3e, 0x93, 0x7d, 0x6b, 0x5a, 0x7e, 0x2e, 0xd8,
+	0xc0, 0x0e, 0x92, 0x56, 0xdc, 0xcb, 0x0d, 0x7f, 0x02, 0x00, 0x00, 0xff, 0xff, 0x3a, 0xab, 0xcc,
+	0x6b, 0xc7, 0x01, 0x00, 0x00,
 }
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/zipkin-endpoint.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/zipkin-endpoint.go
similarity index 95%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/zipkin-endpoint.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/zipkin-endpoint.go
index e06ca4cbc..8f54d1b22 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/zipkin-endpoint.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/zipkin-endpoint.go
@@ -6,7 +6,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 // makeEndpoint takes the hostport and service name that represent this Zipkin
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/zipkin-recorder.go b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/zipkin-recorder.go
similarity index 73%
rename from vendor/github.com/openzipkin/zipkin-go-opentracing/zipkin-recorder.go
rename to vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/zipkin-recorder.go
index 125d73a1a..aac0b6783 100644
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/zipkin-recorder.go
+++ b/vendor/github.com/openzipkin-contrib/zipkin-go-opentracing/zipkin-recorder.go
@@ -3,7 +3,6 @@ package zipkintracer
 import (
 	"encoding/binary"
 	"fmt"
-	"math"
 	"net"
 	"strconv"
 	"time"
@@ -11,8 +10,8 @@ import (
 	otext "github.com/opentracing/opentracing-go/ext"
 	"github.com/opentracing/opentracing-go/log"
 
-	"github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore"
-	"github.com/openzipkin/zipkin-go-opentracing/flag"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/flag"
+	"github.com/openzipkin-contrib/zipkin-go-opentracing/thrift/gen-go/zipkincore"
 )
 
 var (
@@ -162,6 +161,7 @@ func (r *Recorder) RecordSpan(sp RawSpan) {
 		default:
 			annotateBinary(span, zipkincore.LOCAL_COMPONENT, r.endpoint.GetServiceName(), r.endpoint)
 		}
+		delete(sp.Tags, string(otext.SpanKind))
 	} else {
 		annotateBinary(span, zipkincore.LOCAL_COMPONENT, r.endpoint.GetServiceName(), r.endpoint)
 	}
@@ -202,86 +202,17 @@ func annotate(span *zipkincore.Span, timestamp time.Time, value string, host *zi
 // annotateBinary annotates the span with a key and a value that will be []byte
 // encoded.
 func annotateBinary(span *zipkincore.Span, key string, value interface{}, host *zipkincore.Endpoint) {
-	var a zipkincore.AnnotationType
-	var b []byte
-	// We are not using zipkincore.AnnotationType_I16 for types that could fit
-	// as reporting on it seems to be broken on the zipkin web interface
-	// (however, we can properly extract the number from zipkin storage
-	// directly). int64 has issues with negative numbers but seems ok for
-	// positive numbers needing more than 32 bit.
-	switch v := value.(type) {
-	case bool:
-		a = zipkincore.AnnotationType_BOOL
-		b = []byte("\x00")
-		if v {
-			b = []byte("\x01")
+	if b, ok := value.(bool); ok {
+		if b {
+			value = "true"
+		} else {
+			value = "false"
 		}
-	case []byte:
-		a = zipkincore.AnnotationType_BYTES
-		b = v
-	case byte:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 4)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case int8:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 4)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case int16:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 4)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case uint16:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 4)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case int32:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 4)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case uint32:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 4)
-		binary.BigEndian.PutUint32(b, v)
-	case int64:
-		a = zipkincore.AnnotationType_I64
-		b = make([]byte, 8)
-		binary.BigEndian.PutUint64(b, uint64(v))
-	case int:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 8)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case uint:
-		a = zipkincore.AnnotationType_I32
-		b = make([]byte, 8)
-		binary.BigEndian.PutUint32(b, uint32(v))
-	case uint64:
-		a = zipkincore.AnnotationType_I64
-		b = make([]byte, 8)
-		binary.BigEndian.PutUint64(b, v)
-	case float32:
-		a = zipkincore.AnnotationType_DOUBLE
-		b = make([]byte, 8)
-		bits := math.Float64bits(float64(v))
-		binary.BigEndian.PutUint64(b, bits)
-	case float64:
-		a = zipkincore.AnnotationType_DOUBLE
-		b = make([]byte, 8)
-		bits := math.Float64bits(v)
-		binary.BigEndian.PutUint64(b, bits)
-	case string:
-		a = zipkincore.AnnotationType_STRING
-		b = []byte(v)
-	default:
-		// we have no handler for type's value, but let's get a string
-		// representation of it.
-		a = zipkincore.AnnotationType_STRING
-		b = []byte(fmt.Sprintf("%+v", value))
 	}
 	span.BinaryAnnotations = append(span.BinaryAnnotations, &zipkincore.BinaryAnnotation{
 		Key:            key,
-		Value:          b,
-		AnnotationType: a,
+		Value:          []byte(fmt.Sprintf("%+v", value)),
+		AnnotationType: zipkincore.AnnotationType_STRING,
 		Host:           host,
 	})
 }
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go b/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go
deleted file mode 100644
index c0de88e43..000000000
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/scribe.go
+++ /dev/null
@@ -1,431 +0,0 @@
-// Autogenerated by Thrift Compiler (0.9.3)
-// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
-
-package scribe
-
-import (
-	"bytes"
-	"fmt"
-	"github.com/apache/thrift/lib/go/thrift"
-)
-
-// (needed to ensure safety because of naive import list construction.)
-var _ = thrift.ZERO
-var _ = fmt.Printf
-var _ = bytes.Equal
-
-type Scribe interface {
-	// Parameters:
-	//  - Messages
-	Log(messages []*LogEntry) (r ResultCode, err error)
-}
-
-type ScribeClient struct {
-	Transport       thrift.TTransport
-	ProtocolFactory thrift.TProtocolFactory
-	InputProtocol   thrift.TProtocol
-	OutputProtocol  thrift.TProtocol
-	SeqId           int32
-}
-
-func NewScribeClientFactory(t thrift.TTransport, f thrift.TProtocolFactory) *ScribeClient {
-	return &ScribeClient{Transport: t,
-		ProtocolFactory: f,
-		InputProtocol:   f.GetProtocol(t),
-		OutputProtocol:  f.GetProtocol(t),
-		SeqId:           0,
-	}
-}
-
-func NewScribeClientProtocol(t thrift.TTransport, iprot thrift.TProtocol, oprot thrift.TProtocol) *ScribeClient {
-	return &ScribeClient{Transport: t,
-		ProtocolFactory: nil,
-		InputProtocol:   iprot,
-		OutputProtocol:  oprot,
-		SeqId:           0,
-	}
-}
-
-// Parameters:
-//  - Messages
-func (p *ScribeClient) Log(messages []*LogEntry) (r ResultCode, err error) {
-	if err = p.sendLog(messages); err != nil {
-		return
-	}
-	return p.recvLog()
-}
-
-func (p *ScribeClient) sendLog(messages []*LogEntry) (err error) {
-	oprot := p.OutputProtocol
-	if oprot == nil {
-		oprot = p.ProtocolFactory.GetProtocol(p.Transport)
-		p.OutputProtocol = oprot
-	}
-	p.SeqId++
-	if err = oprot.WriteMessageBegin("Log", thrift.CALL, p.SeqId); err != nil {
-		return
-	}
-	args := ScribeLogArgs{
-		Messages: messages,
-	}
-	if err = args.Write(oprot); err != nil {
-		return
-	}
-	if err = oprot.WriteMessageEnd(); err != nil {
-		return
-	}
-	return oprot.Flush()
-}
-
-func (p *ScribeClient) recvLog() (value ResultCode, err error) {
-	iprot := p.InputProtocol
-	if iprot == nil {
-		iprot = p.ProtocolFactory.GetProtocol(p.Transport)
-		p.InputProtocol = iprot
-	}
-	method, mTypeId, seqId, err := iprot.ReadMessageBegin()
-	if err != nil {
-		return
-	}
-	if method != "Log" {
-		err = thrift.NewTApplicationException(thrift.WRONG_METHOD_NAME, "Log failed: wrong method name")
-		return
-	}
-	if p.SeqId != seqId {
-		err = thrift.NewTApplicationException(thrift.BAD_SEQUENCE_ID, "Log failed: out of sequence response")
-		return
-	}
-	if mTypeId == thrift.EXCEPTION {
-		error0 := thrift.NewTApplicationException(thrift.UNKNOWN_APPLICATION_EXCEPTION, "Unknown Exception")
-		var error1 error
-		error1, err = error0.Read(iprot)
-		if err != nil {
-			return
-		}
-		if err = iprot.ReadMessageEnd(); err != nil {
-			return
-		}
-		err = error1
-		return
-	}
-	if mTypeId != thrift.REPLY {
-		err = thrift.NewTApplicationException(thrift.INVALID_MESSAGE_TYPE_EXCEPTION, "Log failed: invalid message type")
-		return
-	}
-	result := ScribeLogResult{}
-	if err = result.Read(iprot); err != nil {
-		return
-	}
-	if err = iprot.ReadMessageEnd(); err != nil {
-		return
-	}
-	value = result.GetSuccess()
-	return
-}
-
-type ScribeProcessor struct {
-	processorMap map[string]thrift.TProcessorFunction
-	handler      Scribe
-}
-
-func (p *ScribeProcessor) AddToProcessorMap(key string, processor thrift.TProcessorFunction) {
-	p.processorMap[key] = processor
-}
-
-func (p *ScribeProcessor) GetProcessorFunction(key string) (processor thrift.TProcessorFunction, ok bool) {
-	processor, ok = p.processorMap[key]
-	return processor, ok
-}
-
-func (p *ScribeProcessor) ProcessorMap() map[string]thrift.TProcessorFunction {
-	return p.processorMap
-}
-
-func NewScribeProcessor(handler Scribe) *ScribeProcessor {
-
-	self2 := &ScribeProcessor{handler: handler, processorMap: make(map[string]thrift.TProcessorFunction)}
-	self2.processorMap["Log"] = &scribeProcessorLog{handler: handler}
-	return self2
-}
-
-func (p *ScribeProcessor) Process(iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
-	name, _, seqId, err := iprot.ReadMessageBegin()
-	if err != nil {
-		return false, err
-	}
-	if processor, ok := p.GetProcessorFunction(name); ok {
-		return processor.Process(seqId, iprot, oprot)
-	}
-	iprot.Skip(thrift.STRUCT)
-	iprot.ReadMessageEnd()
-	x3 := thrift.NewTApplicationException(thrift.UNKNOWN_METHOD, "Unknown function "+name)
-	oprot.WriteMessageBegin(name, thrift.EXCEPTION, seqId)
-	x3.Write(oprot)
-	oprot.WriteMessageEnd()
-	oprot.Flush()
-	return false, x3
-
-}
-
-type scribeProcessorLog struct {
-	handler Scribe
-}
-
-func (p *scribeProcessorLog) Process(seqId int32, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
-	args := ScribeLogArgs{}
-	if err = args.Read(iprot); err != nil {
-		iprot.ReadMessageEnd()
-		x := thrift.NewTApplicationException(thrift.PROTOCOL_ERROR, err.Error())
-		oprot.WriteMessageBegin("Log", thrift.EXCEPTION, seqId)
-		x.Write(oprot)
-		oprot.WriteMessageEnd()
-		oprot.Flush()
-		return false, err
-	}
-
-	iprot.ReadMessageEnd()
-	result := ScribeLogResult{}
-	var retval ResultCode
-	var err2 error
-	if retval, err2 = p.handler.Log(args.Messages); err2 != nil {
-		x := thrift.NewTApplicationException(thrift.INTERNAL_ERROR, "Internal error processing Log: "+err2.Error())
-		oprot.WriteMessageBegin("Log", thrift.EXCEPTION, seqId)
-		x.Write(oprot)
-		oprot.WriteMessageEnd()
-		oprot.Flush()
-		return true, err2
-	} else {
-		result.Success = &retval
-	}
-	if err2 = oprot.WriteMessageBegin("Log", thrift.REPLY, seqId); err2 != nil {
-		err = err2
-	}
-	if err2 = result.Write(oprot); err == nil && err2 != nil {
-		err = err2
-	}
-	if err2 = oprot.WriteMessageEnd(); err == nil && err2 != nil {
-		err = err2
-	}
-	if err2 = oprot.Flush(); err == nil && err2 != nil {
-		err = err2
-	}
-	if err != nil {
-		return
-	}
-	return true, err
-}
-
-// HELPER FUNCTIONS AND STRUCTURES
-
-// Attributes:
-//  - Messages
-type ScribeLogArgs struct {
-	Messages []*LogEntry `thrift:"messages,1" json:"messages"`
-}
-
-func NewScribeLogArgs() *ScribeLogArgs {
-	return &ScribeLogArgs{}
-}
-
-func (p *ScribeLogArgs) GetMessages() []*LogEntry {
-	return p.Messages
-}
-func (p *ScribeLogArgs) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 1:
-			if err := p.readField1(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *ScribeLogArgs) readField1(iprot thrift.TProtocol) error {
-	_, size, err := iprot.ReadListBegin()
-	if err != nil {
-		return thrift.PrependError("error reading list begin: ", err)
-	}
-	tSlice := make([]*LogEntry, 0, size)
-	p.Messages = tSlice
-	for i := 0; i < size; i++ {
-		_elem4 := &LogEntry{}
-		if err := _elem4.Read(iprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", _elem4), err)
-		}
-		p.Messages = append(p.Messages, _elem4)
-	}
-	if err := iprot.ReadListEnd(); err != nil {
-		return thrift.PrependError("error reading list end: ", err)
-	}
-	return nil
-}
-
-func (p *ScribeLogArgs) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("Log_args"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField1(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *ScribeLogArgs) writeField1(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("messages", thrift.LIST, 1); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:messages: ", p), err)
-	}
-	if err := oprot.WriteListBegin(thrift.STRUCT, len(p.Messages)); err != nil {
-		return thrift.PrependError("error writing list begin: ", err)
-	}
-	for _, v := range p.Messages {
-		if err := v.Write(oprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", v), err)
-		}
-	}
-	if err := oprot.WriteListEnd(); err != nil {
-		return thrift.PrependError("error writing list end: ", err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 1:messages: ", p), err)
-	}
-	return err
-}
-
-func (p *ScribeLogArgs) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("ScribeLogArgs(%+v)", *p)
-}
-
-// Attributes:
-//  - Success
-type ScribeLogResult struct {
-	Success *ResultCode `thrift:"success,0" json:"success,omitempty"`
-}
-
-func NewScribeLogResult() *ScribeLogResult {
-	return &ScribeLogResult{}
-}
-
-var ScribeLogResult_Success_DEFAULT ResultCode
-
-func (p *ScribeLogResult) GetSuccess() ResultCode {
-	if !p.IsSetSuccess() {
-		return ScribeLogResult_Success_DEFAULT
-	}
-	return *p.Success
-}
-func (p *ScribeLogResult) IsSetSuccess() bool {
-	return p.Success != nil
-}
-
-func (p *ScribeLogResult) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 0:
-			if err := p.readField0(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *ScribeLogResult) readField0(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI32(); err != nil {
-		return thrift.PrependError("error reading field 0: ", err)
-	} else {
-		temp := ResultCode(v)
-		p.Success = &temp
-	}
-	return nil
-}
-
-func (p *ScribeLogResult) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("Log_result"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField0(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *ScribeLogResult) writeField0(oprot thrift.TProtocol) (err error) {
-	if p.IsSetSuccess() {
-		if err := oprot.WriteFieldBegin("success", thrift.I32, 0); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 0:success: ", p), err)
-		}
-		if err := oprot.WriteI32(int32(*p.Success)); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.success (0) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 0:success: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *ScribeLogResult) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("ScribeLogResult(%+v)", *p)
-}
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/ttypes.go b/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/ttypes.go
deleted file mode 100644
index 1e8bed6d3..000000000
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/scribe/ttypes.go
+++ /dev/null
@@ -1,185 +0,0 @@
-// Autogenerated by Thrift Compiler (0.9.3)
-// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
-
-package scribe
-
-import (
-	"bytes"
-	"fmt"
-	"github.com/apache/thrift/lib/go/thrift"
-)
-
-// (needed to ensure safety because of naive import list construction.)
-var _ = thrift.ZERO
-var _ = fmt.Printf
-var _ = bytes.Equal
-
-var GoUnusedProtection__ int
-
-type ResultCode int64
-
-const (
-	ResultCode_OK        ResultCode = 0
-	ResultCode_TRY_LATER ResultCode = 1
-)
-
-func (p ResultCode) String() string {
-	switch p {
-	case ResultCode_OK:
-		return "OK"
-	case ResultCode_TRY_LATER:
-		return "TRY_LATER"
-	}
-	return "<UNSET>"
-}
-
-func ResultCodeFromString(s string) (ResultCode, error) {
-	switch s {
-	case "OK":
-		return ResultCode_OK, nil
-	case "TRY_LATER":
-		return ResultCode_TRY_LATER, nil
-	}
-	return ResultCode(0), fmt.Errorf("not a valid ResultCode string")
-}
-
-func ResultCodePtr(v ResultCode) *ResultCode { return &v }
-
-func (p ResultCode) MarshalText() ([]byte, error) {
-	return []byte(p.String()), nil
-}
-
-func (p *ResultCode) UnmarshalText(text []byte) error {
-	q, err := ResultCodeFromString(string(text))
-	if err != nil {
-		return err
-	}
-	*p = q
-	return nil
-}
-
-// Attributes:
-//  - Category
-//  - Message
-type LogEntry struct {
-	Category string `thrift:"category,1" json:"category"`
-	Message  string `thrift:"message,2" json:"message"`
-}
-
-func NewLogEntry() *LogEntry {
-	return &LogEntry{}
-}
-
-func (p *LogEntry) GetCategory() string {
-	return p.Category
-}
-
-func (p *LogEntry) GetMessage() string {
-	return p.Message
-}
-func (p *LogEntry) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 1:
-			if err := p.readField1(iprot); err != nil {
-				return err
-			}
-		case 2:
-			if err := p.readField2(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *LogEntry) readField1(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadString(); err != nil {
-		return thrift.PrependError("error reading field 1: ", err)
-	} else {
-		p.Category = v
-	}
-	return nil
-}
-
-func (p *LogEntry) readField2(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadString(); err != nil {
-		return thrift.PrependError("error reading field 2: ", err)
-	} else {
-		p.Message = v
-	}
-	return nil
-}
-
-func (p *LogEntry) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("LogEntry"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField1(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField2(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *LogEntry) writeField1(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("category", thrift.STRING, 1); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:category: ", p), err)
-	}
-	if err := oprot.WriteString(string(p.Category)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.category (1) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 1:category: ", p), err)
-	}
-	return err
-}
-
-func (p *LogEntry) writeField2(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("message", thrift.STRING, 2); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:message: ", p), err)
-	}
-	if err := oprot.WriteString(string(p.Message)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.message (2) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 2:message: ", p), err)
-	}
-	return err
-}
-
-func (p *LogEntry) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("LogEntry(%+v)", *p)
-}
diff --git a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/ttypes.go b/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/ttypes.go
deleted file mode 100644
index 2852d368c..000000000
--- a/vendor/github.com/openzipkin/zipkin-go-opentracing/thrift/gen-go/zipkincore/ttypes.go
+++ /dev/null
@@ -1,1272 +0,0 @@
-// Autogenerated by Thrift Compiler (0.9.3)
-// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
-
-package zipkincore
-
-import (
-	"bytes"
-	"fmt"
-	"github.com/apache/thrift/lib/go/thrift"
-)
-
-// (needed to ensure safety because of naive import list construction.)
-var _ = thrift.ZERO
-var _ = fmt.Printf
-var _ = bytes.Equal
-
-var GoUnusedProtection__ int
-
-//A subset of thrift base types, except BYTES.
-type AnnotationType int64
-
-const (
-	AnnotationType_BOOL   AnnotationType = 0
-	AnnotationType_BYTES  AnnotationType = 1
-	AnnotationType_I16    AnnotationType = 2
-	AnnotationType_I32    AnnotationType = 3
-	AnnotationType_I64    AnnotationType = 4
-	AnnotationType_DOUBLE AnnotationType = 5
-	AnnotationType_STRING AnnotationType = 6
-)
-
-func (p AnnotationType) String() string {
-	switch p {
-	case AnnotationType_BOOL:
-		return "BOOL"
-	case AnnotationType_BYTES:
-		return "BYTES"
-	case AnnotationType_I16:
-		return "I16"
-	case AnnotationType_I32:
-		return "I32"
-	case AnnotationType_I64:
-		return "I64"
-	case AnnotationType_DOUBLE:
-		return "DOUBLE"
-	case AnnotationType_STRING:
-		return "STRING"
-	}
-	return "<UNSET>"
-}
-
-func AnnotationTypeFromString(s string) (AnnotationType, error) {
-	switch s {
-	case "BOOL":
-		return AnnotationType_BOOL, nil
-	case "BYTES":
-		return AnnotationType_BYTES, nil
-	case "I16":
-		return AnnotationType_I16, nil
-	case "I32":
-		return AnnotationType_I32, nil
-	case "I64":
-		return AnnotationType_I64, nil
-	case "DOUBLE":
-		return AnnotationType_DOUBLE, nil
-	case "STRING":
-		return AnnotationType_STRING, nil
-	}
-	return AnnotationType(0), fmt.Errorf("not a valid AnnotationType string")
-}
-
-func AnnotationTypePtr(v AnnotationType) *AnnotationType { return &v }
-
-func (p AnnotationType) MarshalText() ([]byte, error) {
-	return []byte(p.String()), nil
-}
-
-func (p *AnnotationType) UnmarshalText(text []byte) error {
-	q, err := AnnotationTypeFromString(string(text))
-	if err != nil {
-		return err
-	}
-	*p = q
-	return nil
-}
-
-// Indicates the network context of a service recording an annotation with two
-// exceptions.
-//
-// When a BinaryAnnotation, and key is CLIENT_ADDR or SERVER_ADDR,
-// the endpoint indicates the source or destination of an RPC. This exception
-// allows zipkin to display network context of uninstrumented services, or
-// clients such as web browsers.
-//
-// Attributes:
-//  - Ipv4: IPv4 host address packed into 4 bytes.
-//
-// Ex for the ip 1.2.3.4, it would be (1 << 24) | (2 << 16) | (3 << 8) | 4
-//  - Port: IPv4 port or 0, if unknown.
-//
-// Note: this is to be treated as an unsigned integer, so watch for negatives.
-//  - ServiceName: Classifier of a source or destination in lowercase, such as "zipkin-web".
-//
-// This is the primary parameter for trace lookup, so should be intuitive as
-// possible, for example, matching names in service discovery.
-//
-// Conventionally, when the service name isn't known, service_name = "unknown".
-// However, it is also permissible to set service_name = "" (empty string).
-// The difference in the latter usage is that the span will not be queryable
-// by service name unless more information is added to the span with non-empty
-// service name, e.g. an additional annotation from the server.
-//
-// Particularly clients may not have a reliable service name at ingest. One
-// approach is to set service_name to "" at ingest, and later assign a
-// better label based on binary annotations, such as user agent.
-//  - Ipv6: IPv6 host address packed into 16 bytes. Ex Inet6Address.getBytes()
-type Endpoint struct {
-	Ipv4        int32  `thrift:"ipv4,1" json:"ipv4"`
-	Port        int16  `thrift:"port,2" json:"port"`
-	ServiceName string `thrift:"service_name,3" json:"service_name"`
-	Ipv6        []byte `thrift:"ipv6,4" json:"ipv6,omitempty"`
-}
-
-func NewEndpoint() *Endpoint {
-	return &Endpoint{}
-}
-
-func (p *Endpoint) GetIpv4() int32 {
-	return p.Ipv4
-}
-
-func (p *Endpoint) GetPort() int16 {
-	return p.Port
-}
-
-func (p *Endpoint) GetServiceName() string {
-	return p.ServiceName
-}
-
-var Endpoint_Ipv6_DEFAULT []byte
-
-func (p *Endpoint) GetIpv6() []byte {
-	return p.Ipv6
-}
-func (p *Endpoint) IsSetIpv6() bool {
-	return p.Ipv6 != nil
-}
-
-func (p *Endpoint) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 1:
-			if err := p.readField1(iprot); err != nil {
-				return err
-			}
-		case 2:
-			if err := p.readField2(iprot); err != nil {
-				return err
-			}
-		case 3:
-			if err := p.readField3(iprot); err != nil {
-				return err
-			}
-		case 4:
-			if err := p.readField4(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *Endpoint) readField1(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI32(); err != nil {
-		return thrift.PrependError("error reading field 1: ", err)
-	} else {
-		p.Ipv4 = v
-	}
-	return nil
-}
-
-func (p *Endpoint) readField2(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI16(); err != nil {
-		return thrift.PrependError("error reading field 2: ", err)
-	} else {
-		p.Port = v
-	}
-	return nil
-}
-
-func (p *Endpoint) readField3(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadString(); err != nil {
-		return thrift.PrependError("error reading field 3: ", err)
-	} else {
-		p.ServiceName = v
-	}
-	return nil
-}
-
-func (p *Endpoint) readField4(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadBinary(); err != nil {
-		return thrift.PrependError("error reading field 4: ", err)
-	} else {
-		p.Ipv6 = v
-	}
-	return nil
-}
-
-func (p *Endpoint) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("Endpoint"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField1(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField2(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField3(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField4(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *Endpoint) writeField1(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("ipv4", thrift.I32, 1); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:ipv4: ", p), err)
-	}
-	if err := oprot.WriteI32(int32(p.Ipv4)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.ipv4 (1) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 1:ipv4: ", p), err)
-	}
-	return err
-}
-
-func (p *Endpoint) writeField2(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("port", thrift.I16, 2); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:port: ", p), err)
-	}
-	if err := oprot.WriteI16(int16(p.Port)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.port (2) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 2:port: ", p), err)
-	}
-	return err
-}
-
-func (p *Endpoint) writeField3(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("service_name", thrift.STRING, 3); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:service_name: ", p), err)
-	}
-	if err := oprot.WriteString(string(p.ServiceName)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.service_name (3) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 3:service_name: ", p), err)
-	}
-	return err
-}
-
-func (p *Endpoint) writeField4(oprot thrift.TProtocol) (err error) {
-	if p.IsSetIpv6() {
-		if err := oprot.WriteFieldBegin("ipv6", thrift.STRING, 4); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:ipv6: ", p), err)
-		}
-		if err := oprot.WriteBinary(p.Ipv6); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.ipv6 (4) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 4:ipv6: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Endpoint) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("Endpoint(%+v)", *p)
-}
-
-// Associates an event that explains latency with a timestamp.
-//
-// Unlike log statements, annotations are often codes: for example "sr".
-//
-// Attributes:
-//  - Timestamp: Microseconds from epoch.
-//
-// This value should use the most precise value possible. For example,
-// gettimeofday or syncing nanoTime against a tick of currentTimeMillis.
-//  - Value: Usually a short tag indicating an event, like "sr" or "finagle.retry".
-//  - Host: The host that recorded the value, primarily for query by service name.
-type Annotation struct {
-	Timestamp int64     `thrift:"timestamp,1" json:"timestamp"`
-	Value     string    `thrift:"value,2" json:"value"`
-	Host      *Endpoint `thrift:"host,3" json:"host,omitempty"`
-}
-
-func NewAnnotation() *Annotation {
-	return &Annotation{}
-}
-
-func (p *Annotation) GetTimestamp() int64 {
-	return p.Timestamp
-}
-
-func (p *Annotation) GetValue() string {
-	return p.Value
-}
-
-var Annotation_Host_DEFAULT *Endpoint
-
-func (p *Annotation) GetHost() *Endpoint {
-	if !p.IsSetHost() {
-		return Annotation_Host_DEFAULT
-	}
-	return p.Host
-}
-func (p *Annotation) IsSetHost() bool {
-	return p.Host != nil
-}
-
-func (p *Annotation) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 1:
-			if err := p.readField1(iprot); err != nil {
-				return err
-			}
-		case 2:
-			if err := p.readField2(iprot); err != nil {
-				return err
-			}
-		case 3:
-			if err := p.readField3(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *Annotation) readField1(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 1: ", err)
-	} else {
-		p.Timestamp = v
-	}
-	return nil
-}
-
-func (p *Annotation) readField2(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadString(); err != nil {
-		return thrift.PrependError("error reading field 2: ", err)
-	} else {
-		p.Value = v
-	}
-	return nil
-}
-
-func (p *Annotation) readField3(iprot thrift.TProtocol) error {
-	p.Host = &Endpoint{}
-	if err := p.Host.Read(iprot); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", p.Host), err)
-	}
-	return nil
-}
-
-func (p *Annotation) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("Annotation"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField1(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField2(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField3(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *Annotation) writeField1(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("timestamp", thrift.I64, 1); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:timestamp: ", p), err)
-	}
-	if err := oprot.WriteI64(int64(p.Timestamp)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.timestamp (1) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 1:timestamp: ", p), err)
-	}
-	return err
-}
-
-func (p *Annotation) writeField2(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("value", thrift.STRING, 2); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:value: ", p), err)
-	}
-	if err := oprot.WriteString(string(p.Value)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.value (2) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 2:value: ", p), err)
-	}
-	return err
-}
-
-func (p *Annotation) writeField3(oprot thrift.TProtocol) (err error) {
-	if p.IsSetHost() {
-		if err := oprot.WriteFieldBegin("host", thrift.STRUCT, 3); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:host: ", p), err)
-		}
-		if err := p.Host.Write(oprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", p.Host), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 3:host: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Annotation) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("Annotation(%+v)", *p)
-}
-
-// Binary annotations are tags applied to a Span to give it context. For
-// example, a binary annotation of HTTP_PATH ("http.path") could the path
-// to a resource in a RPC call.
-//
-// Binary annotations of type STRING are always queryable, though more a
-// historical implementation detail than a structural concern.
-//
-// Binary annotations can repeat, and vary on the host. Similar to Annotation,
-// the host indicates who logged the event. This allows you to tell the
-// difference between the client and server side of the same key. For example,
-// the key "http.path" might be different on the client and server side due to
-// rewriting, like "/api/v1/myresource" vs "/myresource. Via the host field,
-// you can see the different points of view, which often help in debugging.
-//
-// Attributes:
-//  - Key: Name used to lookup spans, such as "http.path" or "finagle.version".
-//  - Value: Serialized thrift bytes, in TBinaryProtocol format.
-//
-// For legacy reasons, byte order is big-endian. See THRIFT-3217.
-//  - AnnotationType: The thrift type of value, most often STRING.
-//
-// annotation_type shouldn't vary for the same key.
-//  - Host: The host that recorded value, allowing query by service name or address.
-//
-// There are two exceptions: when key is "ca" or "sa", this is the source or
-// destination of an RPC. This exception allows zipkin to display network
-// context of uninstrumented services, such as browsers or databases.
-type BinaryAnnotation struct {
-	Key            string         `thrift:"key,1" json:"key"`
-	Value          []byte         `thrift:"value,2" json:"value"`
-	AnnotationType AnnotationType `thrift:"annotation_type,3" json:"annotation_type"`
-	Host           *Endpoint      `thrift:"host,4" json:"host,omitempty"`
-}
-
-func NewBinaryAnnotation() *BinaryAnnotation {
-	return &BinaryAnnotation{}
-}
-
-func (p *BinaryAnnotation) GetKey() string {
-	return p.Key
-}
-
-func (p *BinaryAnnotation) GetValue() []byte {
-	return p.Value
-}
-
-func (p *BinaryAnnotation) GetAnnotationType() AnnotationType {
-	return p.AnnotationType
-}
-
-var BinaryAnnotation_Host_DEFAULT *Endpoint
-
-func (p *BinaryAnnotation) GetHost() *Endpoint {
-	if !p.IsSetHost() {
-		return BinaryAnnotation_Host_DEFAULT
-	}
-	return p.Host
-}
-func (p *BinaryAnnotation) IsSetHost() bool {
-	return p.Host != nil
-}
-
-func (p *BinaryAnnotation) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 1:
-			if err := p.readField1(iprot); err != nil {
-				return err
-			}
-		case 2:
-			if err := p.readField2(iprot); err != nil {
-				return err
-			}
-		case 3:
-			if err := p.readField3(iprot); err != nil {
-				return err
-			}
-		case 4:
-			if err := p.readField4(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *BinaryAnnotation) readField1(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadString(); err != nil {
-		return thrift.PrependError("error reading field 1: ", err)
-	} else {
-		p.Key = v
-	}
-	return nil
-}
-
-func (p *BinaryAnnotation) readField2(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadBinary(); err != nil {
-		return thrift.PrependError("error reading field 2: ", err)
-	} else {
-		p.Value = v
-	}
-	return nil
-}
-
-func (p *BinaryAnnotation) readField3(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI32(); err != nil {
-		return thrift.PrependError("error reading field 3: ", err)
-	} else {
-		temp := AnnotationType(v)
-		p.AnnotationType = temp
-	}
-	return nil
-}
-
-func (p *BinaryAnnotation) readField4(iprot thrift.TProtocol) error {
-	p.Host = &Endpoint{}
-	if err := p.Host.Read(iprot); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", p.Host), err)
-	}
-	return nil
-}
-
-func (p *BinaryAnnotation) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("BinaryAnnotation"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField1(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField2(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField3(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField4(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *BinaryAnnotation) writeField1(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("key", thrift.STRING, 1); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:key: ", p), err)
-	}
-	if err := oprot.WriteString(string(p.Key)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.key (1) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 1:key: ", p), err)
-	}
-	return err
-}
-
-func (p *BinaryAnnotation) writeField2(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("value", thrift.STRING, 2); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 2:value: ", p), err)
-	}
-	if err := oprot.WriteBinary(p.Value); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.value (2) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 2:value: ", p), err)
-	}
-	return err
-}
-
-func (p *BinaryAnnotation) writeField3(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("annotation_type", thrift.I32, 3); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:annotation_type: ", p), err)
-	}
-	if err := oprot.WriteI32(int32(p.AnnotationType)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.annotation_type (3) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 3:annotation_type: ", p), err)
-	}
-	return err
-}
-
-func (p *BinaryAnnotation) writeField4(oprot thrift.TProtocol) (err error) {
-	if p.IsSetHost() {
-		if err := oprot.WriteFieldBegin("host", thrift.STRUCT, 4); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:host: ", p), err)
-		}
-		if err := p.Host.Write(oprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", p.Host), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 4:host: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *BinaryAnnotation) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("BinaryAnnotation(%+v)", *p)
-}
-
-// A trace is a series of spans (often RPC calls) which form a latency tree.
-//
-// Spans are usually created by instrumentation in RPC clients or servers, but
-// can also represent in-process activity. Annotations in spans are similar to
-// log statements, and are sometimes created directly by application developers
-// to indicate events of interest, such as a cache miss.
-//
-// The root span is where parent_id = Nil; it usually has the longest duration
-// in the trace.
-//
-// Span identifiers are packed into i64s, but should be treated opaquely.
-// String encoding is fixed-width lower-hex, to avoid signed interpretation.
-//
-// Attributes:
-//  - TraceID: Unique 8-byte identifier for a trace, set on all spans within it.
-//  - Name: Span name in lowercase, rpc method for example. Conventionally, when the
-// span name isn't known, name = "unknown".
-//  - ID: Unique 8-byte identifier of this span within a trace. A span is uniquely
-// identified in storage by (trace_id, id).
-//  - ParentID: The parent's Span.id; absent if this the root span in a trace.
-//  - Annotations: Associates events that explain latency with a timestamp. Unlike log
-// statements, annotations are often codes: for example SERVER_RECV("sr").
-// Annotations are sorted ascending by timestamp.
-//  - BinaryAnnotations: Tags a span with context, usually to support query or aggregation. For
-// example, a binary annotation key could be "http.path".
-//  - Debug: True is a request to store this span even if it overrides sampling policy.
-//  - Timestamp: Epoch microseconds of the start of this span, absent if this an incomplete
-// span.
-//
-// This value should be set directly by instrumentation, using the most
-// precise value possible. For example, gettimeofday or syncing nanoTime
-// against a tick of currentTimeMillis.
-//
-// For compatibilty with instrumentation that precede this field, collectors
-// or span stores can derive this via Annotation.timestamp.
-// For example, SERVER_RECV.timestamp or CLIENT_SEND.timestamp.
-//
-// Timestamp is nullable for input only. Spans without a timestamp cannot be
-// presented in a timeline: Span stores should not output spans missing a
-// timestamp.
-//
-// There are two known edge-cases where this could be absent: both cases
-// exist when a collector receives a span in parts and a binary annotation
-// precedes a timestamp. This is possible when..
-//  - The span is in-flight (ex not yet received a timestamp)
-//  - The span's start event was lost
-//  - Duration: Measurement in microseconds of the critical path, if known. Durations of
-// less than one microsecond must be rounded up to 1 microsecond.
-//
-// This value should be set directly, as opposed to implicitly via annotation
-// timestamps. Doing so encourages precision decoupled from problems of
-// clocks, such as skew or NTP updates causing time to move backwards.
-//
-// For compatibility with instrumentation that precede this field, collectors
-// or span stores can derive this by subtracting Annotation.timestamp.
-// For example, SERVER_SEND.timestamp - SERVER_RECV.timestamp.
-//
-// If this field is persisted as unset, zipkin will continue to work, except
-// duration query support will be implementation-specific. Similarly, setting
-// this field non-atomically is implementation-specific.
-//
-// This field is i64 vs i32 to support spans longer than 35 minutes.
-//  - TraceIDHigh: Optional unique 8-byte additional identifier for a trace. If non zero, this
-// means the trace uses 128 bit traceIds instead of 64 bit.
-type Span struct {
-	TraceID int64 `thrift:"trace_id,1" json:"trace_id"`
-	// unused field # 2
-	Name        string        `thrift:"name,3" json:"name"`
-	ID          int64         `thrift:"id,4" json:"id"`
-	ParentID    *int64        `thrift:"parent_id,5" json:"parent_id,omitempty"`
-	Annotations []*Annotation `thrift:"annotations,6" json:"annotations"`
-	// unused field # 7
-	BinaryAnnotations []*BinaryAnnotation `thrift:"binary_annotations,8" json:"binary_annotations"`
-	Debug             bool                `thrift:"debug,9" json:"debug,omitempty"`
-	Timestamp         *int64              `thrift:"timestamp,10" json:"timestamp,omitempty"`
-	Duration          *int64              `thrift:"duration,11" json:"duration,omitempty"`
-	TraceIDHigh       *int64              `thrift:"trace_id_high,12" json:"trace_id_high,omitempty"`
-}
-
-func NewSpan() *Span {
-	return &Span{}
-}
-
-func (p *Span) GetTraceID() int64 {
-	return p.TraceID
-}
-
-func (p *Span) GetName() string {
-	return p.Name
-}
-
-func (p *Span) GetID() int64 {
-	return p.ID
-}
-
-var Span_ParentID_DEFAULT int64
-
-func (p *Span) GetParentID() int64 {
-	if !p.IsSetParentID() {
-		return Span_ParentID_DEFAULT
-	}
-	return *p.ParentID
-}
-
-func (p *Span) GetAnnotations() []*Annotation {
-	return p.Annotations
-}
-
-func (p *Span) GetBinaryAnnotations() []*BinaryAnnotation {
-	return p.BinaryAnnotations
-}
-
-var Span_Debug_DEFAULT bool = false
-
-func (p *Span) GetDebug() bool {
-	return p.Debug
-}
-
-var Span_Timestamp_DEFAULT int64
-
-func (p *Span) GetTimestamp() int64 {
-	if !p.IsSetTimestamp() {
-		return Span_Timestamp_DEFAULT
-	}
-	return *p.Timestamp
-}
-
-var Span_Duration_DEFAULT int64
-
-func (p *Span) GetDuration() int64 {
-	if !p.IsSetDuration() {
-		return Span_Duration_DEFAULT
-	}
-	return *p.Duration
-}
-
-var Span_TraceIDHigh_DEFAULT int64
-
-func (p *Span) GetTraceIDHigh() int64 {
-	if !p.IsSetTraceIDHigh() {
-		return Span_TraceIDHigh_DEFAULT
-	}
-	return *p.TraceIDHigh
-}
-func (p *Span) IsSetParentID() bool {
-	return p.ParentID != nil
-}
-
-func (p *Span) IsSetDebug() bool {
-	return p.Debug != Span_Debug_DEFAULT
-}
-
-func (p *Span) IsSetTimestamp() bool {
-	return p.Timestamp != nil
-}
-
-func (p *Span) IsSetDuration() bool {
-	return p.Duration != nil
-}
-
-func (p *Span) IsSetTraceIDHigh() bool {
-	return p.TraceIDHigh != nil
-}
-
-func (p *Span) Read(iprot thrift.TProtocol) error {
-	if _, err := iprot.ReadStructBegin(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
-	}
-
-	for {
-		_, fieldTypeId, fieldId, err := iprot.ReadFieldBegin()
-		if err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T field %d read error: ", p, fieldId), err)
-		}
-		if fieldTypeId == thrift.STOP {
-			break
-		}
-		switch fieldId {
-		case 1:
-			if err := p.readField1(iprot); err != nil {
-				return err
-			}
-		case 3:
-			if err := p.readField3(iprot); err != nil {
-				return err
-			}
-		case 4:
-			if err := p.readField4(iprot); err != nil {
-				return err
-			}
-		case 5:
-			if err := p.readField5(iprot); err != nil {
-				return err
-			}
-		case 6:
-			if err := p.readField6(iprot); err != nil {
-				return err
-			}
-		case 8:
-			if err := p.readField8(iprot); err != nil {
-				return err
-			}
-		case 9:
-			if err := p.readField9(iprot); err != nil {
-				return err
-			}
-		case 10:
-			if err := p.readField10(iprot); err != nil {
-				return err
-			}
-		case 11:
-			if err := p.readField11(iprot); err != nil {
-				return err
-			}
-		case 12:
-			if err := p.readField12(iprot); err != nil {
-				return err
-			}
-		default:
-			if err := iprot.Skip(fieldTypeId); err != nil {
-				return err
-			}
-		}
-		if err := iprot.ReadFieldEnd(); err != nil {
-			return err
-		}
-	}
-	if err := iprot.ReadStructEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T read struct end error: ", p), err)
-	}
-	return nil
-}
-
-func (p *Span) readField1(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 1: ", err)
-	} else {
-		p.TraceID = v
-	}
-	return nil
-}
-
-func (p *Span) readField3(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadString(); err != nil {
-		return thrift.PrependError("error reading field 3: ", err)
-	} else {
-		p.Name = v
-	}
-	return nil
-}
-
-func (p *Span) readField4(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 4: ", err)
-	} else {
-		p.ID = v
-	}
-	return nil
-}
-
-func (p *Span) readField5(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 5: ", err)
-	} else {
-		p.ParentID = &v
-	}
-	return nil
-}
-
-func (p *Span) readField6(iprot thrift.TProtocol) error {
-	_, size, err := iprot.ReadListBegin()
-	if err != nil {
-		return thrift.PrependError("error reading list begin: ", err)
-	}
-	tSlice := make([]*Annotation, 0, size)
-	p.Annotations = tSlice
-	for i := 0; i < size; i++ {
-		_elem0 := &Annotation{}
-		if err := _elem0.Read(iprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", _elem0), err)
-		}
-		p.Annotations = append(p.Annotations, _elem0)
-	}
-	if err := iprot.ReadListEnd(); err != nil {
-		return thrift.PrependError("error reading list end: ", err)
-	}
-	return nil
-}
-
-func (p *Span) readField8(iprot thrift.TProtocol) error {
-	_, size, err := iprot.ReadListBegin()
-	if err != nil {
-		return thrift.PrependError("error reading list begin: ", err)
-	}
-	tSlice := make([]*BinaryAnnotation, 0, size)
-	p.BinaryAnnotations = tSlice
-	for i := 0; i < size; i++ {
-		_elem1 := &BinaryAnnotation{}
-		if err := _elem1.Read(iprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error reading struct: ", _elem1), err)
-		}
-		p.BinaryAnnotations = append(p.BinaryAnnotations, _elem1)
-	}
-	if err := iprot.ReadListEnd(); err != nil {
-		return thrift.PrependError("error reading list end: ", err)
-	}
-	return nil
-}
-
-func (p *Span) readField9(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadBool(); err != nil {
-		return thrift.PrependError("error reading field 9: ", err)
-	} else {
-		p.Debug = v
-	}
-	return nil
-}
-
-func (p *Span) readField10(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 10: ", err)
-	} else {
-		p.Timestamp = &v
-	}
-	return nil
-}
-
-func (p *Span) readField11(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 11: ", err)
-	} else {
-		p.Duration = &v
-	}
-	return nil
-}
-
-func (p *Span) readField12(iprot thrift.TProtocol) error {
-	if v, err := iprot.ReadI64(); err != nil {
-		return thrift.PrependError("error reading field 12: ", err)
-	} else {
-		p.TraceIDHigh = &v
-	}
-	return nil
-}
-
-func (p *Span) Write(oprot thrift.TProtocol) error {
-	if err := oprot.WriteStructBegin("Span"); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
-	}
-	if err := p.writeField1(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField3(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField4(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField5(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField6(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField8(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField9(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField10(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField11(oprot); err != nil {
-		return err
-	}
-	if err := p.writeField12(oprot); err != nil {
-		return err
-	}
-	if err := oprot.WriteFieldStop(); err != nil {
-		return thrift.PrependError("write field stop error: ", err)
-	}
-	if err := oprot.WriteStructEnd(); err != nil {
-		return thrift.PrependError("write struct stop error: ", err)
-	}
-	return nil
-}
-
-func (p *Span) writeField1(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("trace_id", thrift.I64, 1); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 1:trace_id: ", p), err)
-	}
-	if err := oprot.WriteI64(int64(p.TraceID)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.trace_id (1) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 1:trace_id: ", p), err)
-	}
-	return err
-}
-
-func (p *Span) writeField3(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("name", thrift.STRING, 3); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 3:name: ", p), err)
-	}
-	if err := oprot.WriteString(string(p.Name)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.name (3) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 3:name: ", p), err)
-	}
-	return err
-}
-
-func (p *Span) writeField4(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("id", thrift.I64, 4); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:id: ", p), err)
-	}
-	if err := oprot.WriteI64(int64(p.ID)); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T.id (4) field write error: ", p), err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 4:id: ", p), err)
-	}
-	return err
-}
-
-func (p *Span) writeField5(oprot thrift.TProtocol) (err error) {
-	if p.IsSetParentID() {
-		if err := oprot.WriteFieldBegin("parent_id", thrift.I64, 5); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 5:parent_id: ", p), err)
-		}
-		if err := oprot.WriteI64(int64(*p.ParentID)); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.parent_id (5) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 5:parent_id: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Span) writeField6(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("annotations", thrift.LIST, 6); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 6:annotations: ", p), err)
-	}
-	if err := oprot.WriteListBegin(thrift.STRUCT, len(p.Annotations)); err != nil {
-		return thrift.PrependError("error writing list begin: ", err)
-	}
-	for _, v := range p.Annotations {
-		if err := v.Write(oprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", v), err)
-		}
-	}
-	if err := oprot.WriteListEnd(); err != nil {
-		return thrift.PrependError("error writing list end: ", err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 6:annotations: ", p), err)
-	}
-	return err
-}
-
-func (p *Span) writeField8(oprot thrift.TProtocol) (err error) {
-	if err := oprot.WriteFieldBegin("binary_annotations", thrift.LIST, 8); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field begin error 8:binary_annotations: ", p), err)
-	}
-	if err := oprot.WriteListBegin(thrift.STRUCT, len(p.BinaryAnnotations)); err != nil {
-		return thrift.PrependError("error writing list begin: ", err)
-	}
-	for _, v := range p.BinaryAnnotations {
-		if err := v.Write(oprot); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T error writing struct: ", v), err)
-		}
-	}
-	if err := oprot.WriteListEnd(); err != nil {
-		return thrift.PrependError("error writing list end: ", err)
-	}
-	if err := oprot.WriteFieldEnd(); err != nil {
-		return thrift.PrependError(fmt.Sprintf("%T write field end error 8:binary_annotations: ", p), err)
-	}
-	return err
-}
-
-func (p *Span) writeField9(oprot thrift.TProtocol) (err error) {
-	if p.IsSetDebug() {
-		if err := oprot.WriteFieldBegin("debug", thrift.BOOL, 9); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 9:debug: ", p), err)
-		}
-		if err := oprot.WriteBool(bool(p.Debug)); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.debug (9) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 9:debug: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Span) writeField10(oprot thrift.TProtocol) (err error) {
-	if p.IsSetTimestamp() {
-		if err := oprot.WriteFieldBegin("timestamp", thrift.I64, 10); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 10:timestamp: ", p), err)
-		}
-		if err := oprot.WriteI64(int64(*p.Timestamp)); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.timestamp (10) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 10:timestamp: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Span) writeField11(oprot thrift.TProtocol) (err error) {
-	if p.IsSetDuration() {
-		if err := oprot.WriteFieldBegin("duration", thrift.I64, 11); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 11:duration: ", p), err)
-		}
-		if err := oprot.WriteI64(int64(*p.Duration)); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.duration (11) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 11:duration: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Span) writeField12(oprot thrift.TProtocol) (err error) {
-	if p.IsSetTraceIDHigh() {
-		if err := oprot.WriteFieldBegin("trace_id_high", thrift.I64, 12); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field begin error 12:trace_id_high: ", p), err)
-		}
-		if err := oprot.WriteI64(int64(*p.TraceIDHigh)); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T.trace_id_high (12) field write error: ", p), err)
-		}
-		if err := oprot.WriteFieldEnd(); err != nil {
-			return thrift.PrependError(fmt.Sprintf("%T write field end error 12:trace_id_high: ", p), err)
-		}
-	}
-	return err
-}
-
-func (p *Span) String() string {
-	if p == nil {
-		return "<nil>"
-	}
-	return fmt.Sprintf("Span(%+v)", *p)
-}
diff --git a/vendor/github.com/uber/jaeger-client-go/config/config.go b/vendor/github.com/uber/jaeger-client-go/config/config.go
index 6cb546002..320125087 100644
--- a/vendor/github.com/uber/jaeger-client-go/config/config.go
+++ b/vendor/github.com/uber/jaeger-client-go/config/config.go
@@ -28,6 +28,7 @@ import (
 	throttler "github.com/uber/jaeger-client-go/internal/throttler/remote"
 	"github.com/uber/jaeger-client-go/rpcmetrics"
 	"github.com/uber/jaeger-client-go/transport"
+	"github.com/uber/jaeger-lib/metrics"
 )
 
 const defaultSamplingProbability = 0.001
@@ -192,7 +193,7 @@ func (c Configuration) NewTracer(options ...Option) (opentracing.Tracer, io.Clos
 	if c.RPCMetrics {
 		Observer(
 			rpcmetrics.NewObserver(
-				opts.metrics.Namespace("jaeger-rpc", map[string]string{"component": "jaeger"}),
+				opts.metrics.Namespace(metrics.NSOptions{Name: "jaeger-rpc", Tags: map[string]string{"component": "jaeger"}}),
 				rpcmetrics.DefaultNameNormalizer,
 			),
 		)(&opts) // adds to c.observers
@@ -230,6 +231,7 @@ func (c Configuration) NewTracer(options ...Option) (opentracing.Tracer, io.Clos
 		jaeger.TracerOptions.Logger(opts.logger),
 		jaeger.TracerOptions.CustomHeaderKeys(c.Headers),
 		jaeger.TracerOptions.Gen128Bit(opts.gen128Bit),
+		jaeger.TracerOptions.PoolSpans(opts.poolSpans),
 		jaeger.TracerOptions.ZipkinSharedRPCSpan(opts.zipkinSharedRPCSpan),
 		jaeger.TracerOptions.MaxTagValueLength(opts.maxTagValueLength),
 	}
diff --git a/vendor/github.com/uber/jaeger-client-go/config/config_env.go b/vendor/github.com/uber/jaeger-client-go/config/config_env.go
index 66fd53c1b..ff70ae12c 100644
--- a/vendor/github.com/uber/jaeger-client-go/config/config_env.go
+++ b/vendor/github.com/uber/jaeger-client-go/config/config_env.go
@@ -22,7 +22,7 @@ import (
 	"strings"
 	"time"
 
-	opentracing "github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go"
 	"github.com/pkg/errors"
 
 	"github.com/uber/jaeger-client-go"
@@ -159,46 +159,35 @@ func reporterConfigFromEnv() (*ReporterConfig, error) {
 		}
 	}
 
-	host := jaeger.DefaultUDPSpanServerHost
-	ep := os.Getenv(envEndpoint)
-	if e := os.Getenv(envAgentHost); e != "" {
-		if ep != "" {
-			return nil, errors.Errorf("cannot set env vars %s and %s together", envAgentHost, envEndpoint)
-		}
-		host = e
-	}
-
-	port := jaeger.DefaultUDPSpanServerPort
-	if e := os.Getenv(envAgentPort); e != "" {
-		if ep != "" {
-			return nil, errors.Errorf("cannot set env vars %s and %s together", envAgentPort, envEndpoint)
-		}
-		if value, err := strconv.ParseInt(e, 10, 0); err == nil {
-			port = int(value)
-		} else {
-			return nil, errors.Wrapf(err, "cannot parse env var %s=%s", envAgentPort, e)
-		}
-	}
-
-	// the side effect of this is that we are building the default value, even if none of the env vars
-	// were not explicitly passed
-	rc.LocalAgentHostPort = fmt.Sprintf("%s:%d", host, port)
-
-	if ep != "" {
-		u, err := url.ParseRequestURI(ep)
+	if e := os.Getenv(envEndpoint); e != "" {
+		u, err := url.ParseRequestURI(e)
 		if err != nil {
-			return nil, errors.Wrapf(err, "cannot parse env var %s=%s", envEndpoint, ep)
+			return nil, errors.Wrapf(err, "cannot parse env var %s=%s", envEndpoint, e)
+		}
+		rc.CollectorEndpoint = u.String()
+		user := os.Getenv(envUser)
+		pswd := os.Getenv(envPassword)
+		if user != "" && pswd == "" || user == "" && pswd != "" {
+			return nil, errors.Errorf("you must set %s and %s env vars together", envUser, envPassword)
+		}
+		rc.User = user
+		rc.Password = pswd
+	} else {
+		host := jaeger.DefaultUDPSpanServerHost
+		if e := os.Getenv(envAgentHost); e != "" {
+			host = e
 		}
-		rc.CollectorEndpoint = fmt.Sprintf("%s", u)
-	}
 
-	user := os.Getenv(envUser)
-	pswd := os.Getenv(envPassword)
-	if user != "" && pswd == "" || user == "" && pswd != "" {
-		return nil, errors.Errorf("you must set %s and %s env vars together", envUser, envPassword)
+		port := jaeger.DefaultUDPSpanServerPort
+		if e := os.Getenv(envAgentPort); e != "" {
+			if value, err := strconv.ParseInt(e, 10, 0); err == nil {
+				port = int(value)
+			} else {
+				return nil, errors.Wrapf(err, "cannot parse env var %s=%s", envAgentPort, e)
+			}
+		}
+		rc.LocalAgentHostPort = fmt.Sprintf("%s:%d", host, port)
 	}
-	rc.User = user
-	rc.Password = pswd
 
 	return rc, nil
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/config/options.go b/vendor/github.com/uber/jaeger-client-go/config/options.go
index d14f1f8a9..322691bea 100644
--- a/vendor/github.com/uber/jaeger-client-go/config/options.go
+++ b/vendor/github.com/uber/jaeger-client-go/config/options.go
@@ -33,6 +33,7 @@ type Options struct {
 	contribObservers    []jaeger.ContribObserver
 	observers           []jaeger.Observer
 	gen128Bit           bool
+	poolSpans           bool
 	zipkinSharedRPCSpan bool
 	maxTagValueLength   int
 	tags                []opentracing.Tag
@@ -78,7 +79,7 @@ func Observer(observer jaeger.Observer) Option {
 	}
 }
 
-// ContribObserver can be registered with the Tracer to recieve notifications
+// ContribObserver can be registered with the Tracer to receive notifications
 // about new spans.
 func ContribObserver(observer jaeger.ContribObserver) Option {
 	return func(c *Options) {
@@ -93,6 +94,13 @@ func Gen128Bit(gen128Bit bool) Option {
 	}
 }
 
+// PoolSpans specifies whether to pool spans
+func PoolSpans(poolSpans bool) Option {
+	return func(c *Options) {
+		c.poolSpans = poolSpans
+	}
+}
+
 // ZipkinSharedRPCSpan creates an option that enables sharing span ID between client
 // and server spans a la zipkin. If false, client and server spans will be assigned
 // different IDs.
diff --git a/vendor/github.com/uber/jaeger-client-go/constants.go b/vendor/github.com/uber/jaeger-client-go/constants.go
index 0a8dfb69d..aa2d43fc8 100644
--- a/vendor/github.com/uber/jaeger-client-go/constants.go
+++ b/vendor/github.com/uber/jaeger-client-go/constants.go
@@ -16,7 +16,7 @@ package jaeger
 
 const (
 	// JaegerClientVersion is the version of the client library reported as Span tag.
-	JaegerClientVersion = "Go-2.15.0"
+	JaegerClientVersion = "Go-2.16.0"
 
 	// JaegerClientVersionTagKey is the name of the tag used to report client version.
 	JaegerClientVersionTagKey = "jaeger.version"
diff --git a/vendor/github.com/uber/jaeger-client-go/context.go b/vendor/github.com/uber/jaeger-client-go/context.go
index 8b06173d9..90045f4fc 100644
--- a/vendor/github.com/uber/jaeger-client-go/context.go
+++ b/vendor/github.com/uber/jaeger-client-go/context.go
@@ -198,7 +198,7 @@ func (c SpanContext) WithBaggageItem(key, value string) SpanContext {
 // extract method, but now it returns a dummy context with only debugID filled in.
 //
 // See JaegerDebugHeader in constants.go
-// See textMapPropagator#Extract
+// See TextMapPropagator#Extract
 func (c *SpanContext) isDebugIDContainerOnly() bool {
 	return !c.traceID.IsValid() && c.debugID != ""
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/header.go b/vendor/github.com/uber/jaeger-client-go/header.go
index 19c2c055b..5da70351d 100644
--- a/vendor/github.com/uber/jaeger-client-go/header.go
+++ b/vendor/github.com/uber/jaeger-client-go/header.go
@@ -38,7 +38,8 @@ type HeadersConfig struct {
 	TraceBaggageHeaderPrefix string `yaml:"traceBaggageHeaderPrefix"`
 }
 
-func (c *HeadersConfig) applyDefaults() *HeadersConfig {
+// ApplyDefaults sets missing configuration keys to default values
+func (c *HeadersConfig) ApplyDefaults() *HeadersConfig {
 	if c.JaegerBaggageHeader == "" {
 		c.JaegerBaggageHeader = JaegerBaggageHeader
 	}
diff --git a/vendor/github.com/uber/jaeger-client-go/metrics.go b/vendor/github.com/uber/jaeger-client-go/metrics.go
index cadb2b9c0..e56db9b73 100644
--- a/vendor/github.com/uber/jaeger-client-go/metrics.go
+++ b/vendor/github.com/uber/jaeger-client-go/metrics.go
@@ -21,83 +21,83 @@ import (
 // Metrics is a container of all stats emitted by Jaeger tracer.
 type Metrics struct {
 	// Number of traces started by this tracer as sampled
-	TracesStartedSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=y"`
+	TracesStartedSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=y" help:"Number of traces started by this tracer as sampled"`
 
 	// Number of traces started by this tracer as not sampled
-	TracesStartedNotSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=n"`
+	TracesStartedNotSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=n" help:"Number of traces started by this tracer as not sampled"`
 
 	// Number of externally started sampled traces this tracer joined
-	TracesJoinedSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=y"`
+	TracesJoinedSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=y" help:"Number of externally started sampled traces this tracer joined"`
 
 	// Number of externally started not-sampled traces this tracer joined
-	TracesJoinedNotSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=n"`
+	TracesJoinedNotSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=n" help:"Number of externally started not-sampled traces this tracer joined"`
 
 	// Number of sampled spans started by this tracer
-	SpansStartedSampled metrics.Counter `metric:"started_spans" tags:"sampled=y"`
+	SpansStartedSampled metrics.Counter `metric:"started_spans" tags:"sampled=y" help:"Number of sampled spans started by this tracer"`
 
 	// Number of unsampled spans started by this tracer
-	SpansStartedNotSampled metrics.Counter `metric:"started_spans" tags:"sampled=n"`
+	SpansStartedNotSampled metrics.Counter `metric:"started_spans" tags:"sampled=n" help:"Number of unsampled spans started by this tracer"`
 
 	// Number of spans finished by this tracer
-	SpansFinished metrics.Counter `metric:"finished_spans"`
+	SpansFinished metrics.Counter `metric:"finished_spans" help:"Number of spans finished by this tracer"`
 
 	// Number of errors decoding tracing context
-	DecodingErrors metrics.Counter `metric:"span_context_decoding_errors"`
+	DecodingErrors metrics.Counter `metric:"span_context_decoding_errors" help:"Number of errors decoding tracing context"`
 
 	// Number of spans successfully reported
-	ReporterSuccess metrics.Counter `metric:"reporter_spans" tags:"result=ok"`
+	ReporterSuccess metrics.Counter `metric:"reporter_spans" tags:"result=ok" help:"Number of spans successfully reported"`
 
 	// Number of spans not reported due to a Sender failure
-	ReporterFailure metrics.Counter `metric:"reporter_spans" tags:"result=err"`
+	ReporterFailure metrics.Counter `metric:"reporter_spans" tags:"result=err" help:"Number of spans not reported due to a Sender failure"`
 
 	// Number of spans dropped due to internal queue overflow
-	ReporterDropped metrics.Counter `metric:"reporter_spans" tags:"result=dropped"`
+	ReporterDropped metrics.Counter `metric:"reporter_spans" tags:"result=dropped" help:"Number of spans dropped due to internal queue overflow"`
 
 	// Current number of spans in the reporter queue
-	ReporterQueueLength metrics.Gauge `metric:"reporter_queue_length"`
+	ReporterQueueLength metrics.Gauge `metric:"reporter_queue_length" help:"Current number of spans in the reporter queue"`
 
 	// Number of times the Sampler succeeded to retrieve sampling strategy
-	SamplerRetrieved metrics.Counter `metric:"sampler_queries" tags:"result=ok"`
+	SamplerRetrieved metrics.Counter `metric:"sampler_queries" tags:"result=ok" help:"Number of times the Sampler succeeded to retrieve sampling strategy"`
 
 	// Number of times the Sampler failed to retrieve sampling strategy
-	SamplerQueryFailure metrics.Counter `metric:"sampler_queries" tags:"result=err"`
+	SamplerQueryFailure metrics.Counter `metric:"sampler_queries" tags:"result=err" help:"Number of times the Sampler failed to retrieve sampling strategy"`
 
 	// Number of times the Sampler succeeded to retrieve and update sampling strategy
-	SamplerUpdated metrics.Counter `metric:"sampler_updates" tags:"result=ok"`
+	SamplerUpdated metrics.Counter `metric:"sampler_updates" tags:"result=ok" help:"Number of times the Sampler succeeded to retrieve and update sampling strategy"`
 
 	// Number of times the Sampler failed to update sampling strategy
-	SamplerUpdateFailure metrics.Counter `metric:"sampler_updates" tags:"result=err"`
+	SamplerUpdateFailure metrics.Counter `metric:"sampler_updates" tags:"result=err" help:"Number of times the Sampler failed to update sampling strategy"`
 
 	// Number of times baggage was successfully written or updated on spans.
-	BaggageUpdateSuccess metrics.Counter `metric:"baggage_updates" tags:"result=ok"`
+	BaggageUpdateSuccess metrics.Counter `metric:"baggage_updates" tags:"result=ok" help:"Number of times baggage was successfully written or updated on spans"`
 
 	// Number of times baggage failed to write or update on spans.
-	BaggageUpdateFailure metrics.Counter `metric:"baggage_updates" tags:"result=err"`
+	BaggageUpdateFailure metrics.Counter `metric:"baggage_updates" tags:"result=err" help:"Number of times baggage failed to write or update on spans"`
 
 	// Number of times baggage was truncated as per baggage restrictions.
-	BaggageTruncate metrics.Counter `metric:"baggage_truncations"`
+	BaggageTruncate metrics.Counter `metric:"baggage_truncations" help:"Number of times baggage was truncated as per baggage restrictions"`
 
 	// Number of times baggage restrictions were successfully updated.
-	BaggageRestrictionsUpdateSuccess metrics.Counter `metric:"baggage_restrictions_updates" tags:"result=ok"`
+	BaggageRestrictionsUpdateSuccess metrics.Counter `metric:"baggage_restrictions_updates" tags:"result=ok" help:"Number of times baggage restrictions were successfully updated"`
 
 	// Number of times baggage restrictions failed to update.
-	BaggageRestrictionsUpdateFailure metrics.Counter `metric:"baggage_restrictions_updates" tags:"result=err"`
+	BaggageRestrictionsUpdateFailure metrics.Counter `metric:"baggage_restrictions_updates" tags:"result=err" help:"Number of times baggage restrictions failed to update"`
 
 	// Number of times debug spans were throttled.
-	ThrottledDebugSpans metrics.Counter `metric:"throttled_debug_spans"`
+	ThrottledDebugSpans metrics.Counter `metric:"throttled_debug_spans" help:"Number of times debug spans were throttled"`
 
 	// Number of times throttler successfully updated.
-	ThrottlerUpdateSuccess metrics.Counter `metric:"throttler_updates" tags:"result=ok"`
+	ThrottlerUpdateSuccess metrics.Counter `metric:"throttler_updates" tags:"result=ok" help:"Number of times throttler successfully updated"`
 
 	// Number of times throttler failed to update.
-	ThrottlerUpdateFailure metrics.Counter `metric:"throttler_updates" tags:"result=err"`
+	ThrottlerUpdateFailure metrics.Counter `metric:"throttler_updates" tags:"result=err" help:"Number of times throttler failed to update"`
 }
 
 // NewMetrics creates a new Metrics struct and initializes it.
 func NewMetrics(factory metrics.Factory, globalTags map[string]string) *Metrics {
 	m := &Metrics{}
-	// TODO the namespace "jaeger" should be configurable (e.g. in all-in-one "jaeger-client" would make more sense)
-	metrics.Init(m, factory.Namespace("jaeger", nil), globalTags)
+	// TODO the namespace "jaeger" should be configurable
+	metrics.MustInit(m, factory.Namespace(metrics.NSOptions{Name: "jaeger"}).Namespace(metrics.NSOptions{Name: "tracer"}), globalTags)
 	return m
 }
 
diff --git a/vendor/github.com/uber/jaeger-client-go/propagation.go b/vendor/github.com/uber/jaeger-client-go/propagation.go
index abca67a3c..5b50cfb71 100644
--- a/vendor/github.com/uber/jaeger-client-go/propagation.go
+++ b/vendor/github.com/uber/jaeger-client-go/propagation.go
@@ -51,15 +51,17 @@ type Extractor interface {
 	Extract(carrier interface{}) (SpanContext, error)
 }
 
-type textMapPropagator struct {
+// TextMapPropagator is a combined Injector and Extractor for TextMap format
+type TextMapPropagator struct {
 	headerKeys  *HeadersConfig
 	metrics     Metrics
 	encodeValue func(string) string
 	decodeValue func(string) string
 }
 
-func newTextMapPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMapPropagator {
-	return &textMapPropagator{
+// NewTextMapPropagator creates a combined Injector and Extractor for TextMap format
+func NewTextMapPropagator(headerKeys *HeadersConfig, metrics Metrics) *TextMapPropagator {
+	return &TextMapPropagator{
 		headerKeys: headerKeys,
 		metrics:    metrics,
 		encodeValue: func(val string) string {
@@ -71,8 +73,9 @@ func newTextMapPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMapPr
 	}
 }
 
-func newHTTPHeaderPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMapPropagator {
-	return &textMapPropagator{
+// NewHTTPHeaderPropagator creates a combined Injector and Extractor for HTTPHeaders format
+func NewHTTPHeaderPropagator(headerKeys *HeadersConfig, metrics Metrics) *TextMapPropagator {
+	return &TextMapPropagator{
 		headerKeys: headerKeys,
 		metrics:    metrics,
 		encodeValue: func(val string) string {
@@ -88,19 +91,22 @@ func newHTTPHeaderPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMa
 	}
 }
 
-type binaryPropagator struct {
+// BinaryPropagator is a combined Injector and Extractor for Binary format
+type BinaryPropagator struct {
 	tracer  *Tracer
 	buffers sync.Pool
 }
 
-func newBinaryPropagator(tracer *Tracer) *binaryPropagator {
-	return &binaryPropagator{
+// NewBinaryPropagator creates a combined Injector and Extractor for Binary format
+func NewBinaryPropagator(tracer *Tracer) *BinaryPropagator {
+	return &BinaryPropagator{
 		tracer:  tracer,
 		buffers: sync.Pool{New: func() interface{} { return &bytes.Buffer{} }},
 	}
 }
 
-func (p *textMapPropagator) Inject(
+// Inject implements Injector of TextMapPropagator
+func (p *TextMapPropagator) Inject(
 	sc SpanContext,
 	abstractCarrier interface{},
 ) error {
@@ -121,7 +127,8 @@ func (p *textMapPropagator) Inject(
 	return nil
 }
 
-func (p *textMapPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
+// Extract implements Extractor of TextMapPropagator
+func (p *TextMapPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
 	textMapReader, ok := abstractCarrier.(opentracing.TextMapReader)
 	if !ok {
 		return emptyContext, opentracing.ErrInvalidCarrier
@@ -166,7 +173,8 @@ func (p *textMapPropagator) Extract(abstractCarrier interface{}) (SpanContext, e
 	return ctx, nil
 }
 
-func (p *binaryPropagator) Inject(
+// Inject implements Injector of BinaryPropagator
+func (p *BinaryPropagator) Inject(
 	sc SpanContext,
 	abstractCarrier interface{},
 ) error {
@@ -207,7 +215,8 @@ func (p *binaryPropagator) Inject(
 	return nil
 }
 
-func (p *binaryPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
+// Extract implements Extractor of BinaryPropagator
+func (p *BinaryPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
 	carrier, ok := abstractCarrier.(io.Reader)
 	if !ok {
 		return emptyContext, opentracing.ErrInvalidCarrier
@@ -269,7 +278,7 @@ func (p *binaryPropagator) Extract(abstractCarrier interface{}) (SpanContext, er
 // is converted to map[string]string { "key1" : "value1",
 //                                     "key2" : "value2",
 //                                     "key3" : "value3" }
-func (p *textMapPropagator) parseCommaSeparatedMap(value string) map[string]string {
+func (p *TextMapPropagator) parseCommaSeparatedMap(value string) map[string]string {
 	baggage := make(map[string]string)
 	value, err := url.QueryUnescape(value)
 	if err != nil {
@@ -289,12 +298,12 @@ func (p *textMapPropagator) parseCommaSeparatedMap(value string) map[string]stri
 
 // Converts a baggage item key into an http header format,
 // by prepending TraceBaggageHeaderPrefix and encoding the key string
-func (p *textMapPropagator) addBaggageKeyPrefix(key string) string {
+func (p *TextMapPropagator) addBaggageKeyPrefix(key string) string {
 	// TODO encodeBaggageKeyAsHeader add caching and escaping
 	return fmt.Sprintf("%v%v", p.headerKeys.TraceBaggageHeaderPrefix, key)
 }
 
-func (p *textMapPropagator) removeBaggageKeyPrefix(key string) string {
+func (p *TextMapPropagator) removeBaggageKeyPrefix(key string) string {
 	// TODO decodeBaggageHeaderKey add caching and escaping
 	return key[len(p.headerKeys.TraceBaggageHeaderPrefix):]
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go b/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go
index ab8d74c29..a8cec2fa6 100644
--- a/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go
+++ b/vendor/github.com/uber/jaeger-client-go/rpcmetrics/metrics.go
@@ -34,7 +34,7 @@ type Metrics struct {
 	// RequestCountFailures is a counter of the number of times any failure has been observed.
 	RequestCountFailures metrics.Counter `metric:"requests" tags:"error=true"`
 
-	// RequestLatencySuccess is a latency histogram of succesful requests.
+	// RequestLatencySuccess is a latency histogram of successful requests.
 	RequestLatencySuccess metrics.Timer `metric:"request_latency" tags:"error=false"`
 
 	// RequestLatencyFailures is a latency histogram of failed requests.
diff --git a/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/constants.go b/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/constants.go
index f05144bfc..a53d46f0e 100644
--- a/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/constants.go
+++ b/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/constants.go
@@ -18,6 +18,8 @@ const CLIENT_SEND = "cs"
 const CLIENT_RECV = "cr"
 const SERVER_SEND = "ss"
 const SERVER_RECV = "sr"
+const MESSAGE_SEND = "ms"
+const MESSAGE_RECV = "mr"
 const WIRE_SEND = "ws"
 const WIRE_RECV = "wr"
 const CLIENT_SEND_FRAGMENT = "csf"
@@ -27,6 +29,7 @@ const SERVER_RECV_FRAGMENT = "srf"
 const LOCAL_COMPONENT = "lc"
 const CLIENT_ADDR = "ca"
 const SERVER_ADDR = "sa"
+const MESSAGE_ADDR = "ma"
 
 func init() {
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/ttypes.go b/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/ttypes.go
index 34b2b267e..2d49e1d5f 100644
--- a/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/ttypes.go
+++ b/vendor/github.com/uber/jaeger-client-go/thrift-gen/zipkincore/ttypes.go
@@ -103,10 +103,12 @@ func (p *AnnotationType) UnmarshalText(text []byte) error {
 //  - ServiceName: Service name in lowercase, such as "memcache" or "zipkin-web"
 //
 // Conventionally, when the service name isn't known, service_name = "unknown".
+//  - Ipv6: IPv6 host address packed into 16 bytes. Ex Inet6Address.getBytes()
 type Endpoint struct {
 	Ipv4        int32  `thrift:"ipv4,1" json:"ipv4"`
 	Port        int16  `thrift:"port,2" json:"port"`
 	ServiceName string `thrift:"service_name,3" json:"service_name"`
+	Ipv6        []byte `thrift:"ipv6,4" json:"ipv6,omitempty"`
 }
 
 func NewEndpoint() *Endpoint {
@@ -124,6 +126,16 @@ func (p *Endpoint) GetPort() int16 {
 func (p *Endpoint) GetServiceName() string {
 	return p.ServiceName
 }
+
+var Endpoint_Ipv6_DEFAULT []byte
+
+func (p *Endpoint) GetIpv6() []byte {
+	return p.Ipv6
+}
+func (p *Endpoint) IsSetIpv6() bool {
+	return p.Ipv6 != nil
+}
+
 func (p *Endpoint) Read(iprot thrift.TProtocol) error {
 	if _, err := iprot.ReadStructBegin(); err != nil {
 		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
@@ -150,6 +162,10 @@ func (p *Endpoint) Read(iprot thrift.TProtocol) error {
 			if err := p.readField3(iprot); err != nil {
 				return err
 			}
+		case 4:
+			if err := p.readField4(iprot); err != nil {
+				return err
+			}
 		default:
 			if err := iprot.Skip(fieldTypeId); err != nil {
 				return err
@@ -192,6 +208,15 @@ func (p *Endpoint) readField3(iprot thrift.TProtocol) error {
 	return nil
 }
 
+func (p *Endpoint) readField4(iprot thrift.TProtocol) error {
+	if v, err := iprot.ReadBinary(); err != nil {
+		return thrift.PrependError("error reading field 4: ", err)
+	} else {
+		p.Ipv6 = v
+	}
+	return nil
+}
+
 func (p *Endpoint) Write(oprot thrift.TProtocol) error {
 	if err := oprot.WriteStructBegin("Endpoint"); err != nil {
 		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
@@ -205,6 +230,9 @@ func (p *Endpoint) Write(oprot thrift.TProtocol) error {
 	if err := p.writeField3(oprot); err != nil {
 		return err
 	}
+	if err := p.writeField4(oprot); err != nil {
+		return err
+	}
 	if err := oprot.WriteFieldStop(); err != nil {
 		return thrift.PrependError("write field stop error: ", err)
 	}
@@ -253,6 +281,21 @@ func (p *Endpoint) writeField3(oprot thrift.TProtocol) (err error) {
 	return err
 }
 
+func (p *Endpoint) writeField4(oprot thrift.TProtocol) (err error) {
+	if p.IsSetIpv6() {
+		if err := oprot.WriteFieldBegin("ipv6", thrift.STRING, 4); err != nil {
+			return thrift.PrependError(fmt.Sprintf("%T write field begin error 4:ipv6: ", p), err)
+		}
+		if err := oprot.WriteBinary(p.Ipv6); err != nil {
+			return thrift.PrependError(fmt.Sprintf("%T.ipv6 (4) field write error: ", p), err)
+		}
+		if err := oprot.WriteFieldEnd(); err != nil {
+			return thrift.PrependError(fmt.Sprintf("%T write field end error 4:ipv6: ", p), err)
+		}
+	}
+	return err
+}
+
 func (p *Endpoint) String() string {
 	if p == nil {
 		return "<nil>"
@@ -707,6 +750,8 @@ func (p *BinaryAnnotation) String() string {
 // this field non-atomically is implementation-specific.
 //
 // This field is i64 vs i32 to support spans longer than 35 minutes.
+//  - TraceIDHigh: Optional unique 8-byte additional identifier for a trace. If non zero, this
+// means the trace uses 128 bit traceIds instead of 64 bit.
 type Span struct {
 	TraceID int64 `thrift:"trace_id,1" json:"trace_id"`
 	// unused field # 2
@@ -719,6 +764,7 @@ type Span struct {
 	Debug             bool                `thrift:"debug,9" json:"debug,omitempty"`
 	Timestamp         *int64              `thrift:"timestamp,10" json:"timestamp,omitempty"`
 	Duration          *int64              `thrift:"duration,11" json:"duration,omitempty"`
+	TraceIDHigh       *int64              `thrift:"trace_id_high,12" json:"trace_id_high,omitempty"`
 }
 
 func NewSpan() *Span {
@@ -777,6 +823,15 @@ func (p *Span) GetDuration() int64 {
 	}
 	return *p.Duration
 }
+
+var Span_TraceIDHigh_DEFAULT int64
+
+func (p *Span) GetTraceIDHigh() int64 {
+	if !p.IsSetTraceIDHigh() {
+		return Span_TraceIDHigh_DEFAULT
+	}
+	return *p.TraceIDHigh
+}
 func (p *Span) IsSetParentID() bool {
 	return p.ParentID != nil
 }
@@ -793,6 +848,10 @@ func (p *Span) IsSetDuration() bool {
 	return p.Duration != nil
 }
 
+func (p *Span) IsSetTraceIDHigh() bool {
+	return p.TraceIDHigh != nil
+}
+
 func (p *Span) Read(iprot thrift.TProtocol) error {
 	if _, err := iprot.ReadStructBegin(); err != nil {
 		return thrift.PrependError(fmt.Sprintf("%T read error: ", p), err)
@@ -843,6 +902,10 @@ func (p *Span) Read(iprot thrift.TProtocol) error {
 			if err := p.readField11(iprot); err != nil {
 				return err
 			}
+		case 12:
+			if err := p.readField12(iprot); err != nil {
+				return err
+			}
 		default:
 			if err := iprot.Skip(fieldTypeId); err != nil {
 				return err
@@ -961,6 +1024,15 @@ func (p *Span) readField11(iprot thrift.TProtocol) error {
 	return nil
 }
 
+func (p *Span) readField12(iprot thrift.TProtocol) error {
+	if v, err := iprot.ReadI64(); err != nil {
+		return thrift.PrependError("error reading field 12: ", err)
+	} else {
+		p.TraceIDHigh = &v
+	}
+	return nil
+}
+
 func (p *Span) Write(oprot thrift.TProtocol) error {
 	if err := oprot.WriteStructBegin("Span"); err != nil {
 		return thrift.PrependError(fmt.Sprintf("%T write struct begin error: ", p), err)
@@ -992,6 +1064,9 @@ func (p *Span) Write(oprot thrift.TProtocol) error {
 	if err := p.writeField11(oprot); err != nil {
 		return err
 	}
+	if err := p.writeField12(oprot); err != nil {
+		return err
+	}
 	if err := oprot.WriteFieldStop(); err != nil {
 		return thrift.PrependError("write field stop error: ", err)
 	}
@@ -1142,6 +1217,21 @@ func (p *Span) writeField11(oprot thrift.TProtocol) (err error) {
 	return err
 }
 
+func (p *Span) writeField12(oprot thrift.TProtocol) (err error) {
+	if p.IsSetTraceIDHigh() {
+		if err := oprot.WriteFieldBegin("trace_id_high", thrift.I64, 12); err != nil {
+			return thrift.PrependError(fmt.Sprintf("%T write field begin error 12:trace_id_high: ", p), err)
+		}
+		if err := oprot.WriteI64(int64(*p.TraceIDHigh)); err != nil {
+			return thrift.PrependError(fmt.Sprintf("%T.trace_id_high (12) field write error: ", p), err)
+		}
+		if err := oprot.WriteFieldEnd(); err != nil {
+			return thrift.PrependError(fmt.Sprintf("%T write field end error 12:trace_id_high: ", p), err)
+		}
+	}
+	return err
+}
+
 func (p *Span) String() string {
 	if p == nil {
 		return "<nil>"
diff --git a/vendor/github.com/uber/jaeger-client-go/tracer.go b/vendor/github.com/uber/jaeger-client-go/tracer.go
index 198c32eb4..d87fb10be 100644
--- a/vendor/github.com/uber/jaeger-client-go/tracer.go
+++ b/vendor/github.com/uber/jaeger-client-go/tracer.go
@@ -17,6 +17,7 @@ package jaeger
 import (
 	"fmt"
 	"io"
+	"math/rand"
 	"os"
 	"reflect"
 	"strconv"
@@ -96,13 +97,13 @@ func NewTracer(
 	}
 
 	// register default injectors/extractors unless they are already provided via options
-	textPropagator := newTextMapPropagator(getDefaultHeadersConfig(), t.metrics)
+	textPropagator := NewTextMapPropagator(getDefaultHeadersConfig(), t.metrics)
 	t.addCodec(opentracing.TextMap, textPropagator, textPropagator)
 
-	httpHeaderPropagator := newHTTPHeaderPropagator(getDefaultHeadersConfig(), t.metrics)
+	httpHeaderPropagator := NewHTTPHeaderPropagator(getDefaultHeadersConfig(), t.metrics)
 	t.addCodec(opentracing.HTTPHeaders, httpHeaderPropagator, httpHeaderPropagator)
 
-	binaryPropagator := newBinaryPropagator(t)
+	binaryPropagator := NewBinaryPropagator(t)
 	t.addCodec(opentracing.Binary, binaryPropagator, binaryPropagator)
 
 	// TODO remove after TChannel supports OpenTracing
@@ -122,9 +123,18 @@ func NewTracer(
 	}
 
 	if t.randomNumber == nil {
-		rng := utils.NewRand(time.Now().UnixNano())
+		seedGenerator := utils.NewRand(time.Now().UnixNano())
+		pool := sync.Pool{
+			New: func() interface{} {
+				return rand.NewSource(seedGenerator.Int63())
+			},
+		}
+
 		t.randomNumber = func() uint64 {
-			return uint64(rng.Int63())
+			generator := pool.Get().(rand.Source)
+			number := uint64(generator.Int63())
+			pool.Put(generator)
+			return number
 		}
 	}
 	if t.timeNow == nil {
@@ -309,7 +319,11 @@ func (t *Tracer) Extract(
 	carrier interface{},
 ) (opentracing.SpanContext, error) {
 	if extractor, ok := t.extractors[format]; ok {
-		return extractor.Extract(carrier)
+		spanCtx, err := extractor.Extract(carrier)
+		if err != nil {
+			return nil, err // ensure returned spanCtx is nil
+		}
+		return spanCtx, nil
 	}
 	return nil, opentracing.ErrUnsupportedFormat
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/tracer_options.go b/vendor/github.com/uber/jaeger-client-go/tracer_options.go
index a90265f03..b4176cc72 100644
--- a/vendor/github.com/uber/jaeger-client-go/tracer_options.go
+++ b/vendor/github.com/uber/jaeger-client-go/tracer_options.go
@@ -51,10 +51,10 @@ func (tracerOptions) CustomHeaderKeys(headerKeys *HeadersConfig) TracerOption {
 		if headerKeys == nil {
 			return
 		}
-		textPropagator := newTextMapPropagator(headerKeys.applyDefaults(), tracer.metrics)
+		textPropagator := NewTextMapPropagator(headerKeys.ApplyDefaults(), tracer.metrics)
 		tracer.addCodec(opentracing.TextMap, textPropagator, textPropagator)
 
-		httpHeaderPropagator := newHTTPHeaderPropagator(headerKeys.applyDefaults(), tracer.metrics)
+		httpHeaderPropagator := NewHTTPHeaderPropagator(headerKeys.ApplyDefaults(), tracer.metrics)
 		tracer.addCodec(opentracing.HTTPHeaders, httpHeaderPropagator, httpHeaderPropagator)
 	}
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/zipkin/doc.go b/vendor/github.com/uber/jaeger-client-go/zipkin/doc.go
index 11357f8a7..736e5cb30 100644
--- a/vendor/github.com/uber/jaeger-client-go/zipkin/doc.go
+++ b/vendor/github.com/uber/jaeger-client-go/zipkin/doc.go
@@ -12,5 +12,5 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// Package zipkin comprises Zipkin functionality for Zipkin compatiblity.
+// Package zipkin comprises Zipkin functionality for Zipkin compatibility.
 package zipkin
diff --git a/vendor/github.com/uber/jaeger-client-go/zipkin/propagation.go b/vendor/github.com/uber/jaeger-client-go/zipkin/propagation.go
index 000c52f70..722b0875d 100644
--- a/vendor/github.com/uber/jaeger-client-go/zipkin/propagation.go
+++ b/vendor/github.com/uber/jaeger-client-go/zipkin/propagation.go
@@ -23,13 +23,30 @@ import (
 	"github.com/uber/jaeger-client-go"
 )
 
+// Option is a function that sets an option on Propagator
+type Option func(propagator *Propagator)
+
+// BaggagePrefix is a function that sets baggage prefix on Propagator
+func BaggagePrefix(prefix string) Option {
+	return func(propagator *Propagator) {
+		propagator.baggagePrefix = prefix
+	}
+}
+
 // Propagator is an Injector and Extractor
-type Propagator struct{}
+type Propagator struct {
+	baggagePrefix string
+}
 
 // NewZipkinB3HTTPHeaderPropagator creates a Propagator for extracting and injecting
-// Zipkin HTTP B3 headers into SpanContexts.
-func NewZipkinB3HTTPHeaderPropagator() Propagator {
-	return Propagator{}
+// Zipkin HTTP B3 headers into SpanContexts. Baggage is by default enabled and uses prefix
+// 'baggage-'.
+func NewZipkinB3HTTPHeaderPropagator(opts ...Option) Propagator {
+	p := Propagator{baggagePrefix: "baggage-"}
+	for _, opt := range opts {
+		opt(&p)
+	}
+	return p
 }
 
 // Inject conforms to the Injector interface for decoding Zipkin HTTP B3 headers
@@ -42,8 +59,7 @@ func (p Propagator) Inject(
 		return opentracing.ErrInvalidCarrier
 	}
 
-	// TODO this needs to change to support 128bit IDs
-	textMapWriter.Set("x-b3-traceid", strconv.FormatUint(sc.TraceID().Low, 16))
+	textMapWriter.Set("x-b3-traceid", sc.TraceID().String())
 	if sc.ParentID() != 0 {
 		textMapWriter.Set("x-b3-parentspanid", strconv.FormatUint(uint64(sc.ParentID()), 16))
 	}
@@ -53,6 +69,10 @@ func (p Propagator) Inject(
 	} else {
 		textMapWriter.Set("x-b3-sampled", "0")
 	}
+	sc.ForeachBaggageItem(func(k, v string) bool {
+		textMapWriter.Set(p.baggagePrefix+k, v)
+		return true
+	})
 	return nil
 }
 
@@ -62,21 +82,27 @@ func (p Propagator) Extract(abstractCarrier interface{}) (jaeger.SpanContext, er
 	if !ok {
 		return jaeger.SpanContext{}, opentracing.ErrInvalidCarrier
 	}
-	var traceID uint64
+	var traceID jaeger.TraceID
 	var spanID uint64
 	var parentID uint64
 	sampled := false
+	var baggage map[string]string
 	err := textMapReader.ForeachKey(func(rawKey, value string) error {
 		key := strings.ToLower(rawKey) // TODO not necessary for plain TextMap
 		var err error
 		if key == "x-b3-traceid" {
-			traceID, err = strconv.ParseUint(value, 16, 64)
+			traceID, err = jaeger.TraceIDFromString(value)
 		} else if key == "x-b3-parentspanid" {
 			parentID, err = strconv.ParseUint(value, 16, 64)
 		} else if key == "x-b3-spanid" {
 			spanID, err = strconv.ParseUint(value, 16, 64)
-		} else if key == "x-b3-sampled" && value == "1" {
+		} else if key == "x-b3-sampled" && (value == "1" || value == "true") {
 			sampled = true
+		} else if strings.HasPrefix(key, p.baggagePrefix) {
+			if baggage == nil {
+				baggage = make(map[string]string)
+			}
+			baggage[key[len(p.baggagePrefix):]] = value
 		}
 		return err
 	})
@@ -84,12 +110,12 @@ func (p Propagator) Extract(abstractCarrier interface{}) (jaeger.SpanContext, er
 	if err != nil {
 		return jaeger.SpanContext{}, err
 	}
-	if traceID == 0 {
+	if !traceID.IsValid() {
 		return jaeger.SpanContext{}, opentracing.ErrSpanContextNotFound
 	}
 	return jaeger.NewSpanContext(
-		jaeger.TraceID{Low: traceID},
+		traceID,
 		jaeger.SpanID(spanID),
 		jaeger.SpanID(parentID),
-		sampled, nil), nil
+		sampled, baggage), nil
 }
diff --git a/vendor/github.com/uber/jaeger-client-go/zipkin_thrift_span.go b/vendor/github.com/uber/jaeger-client-go/zipkin_thrift_span.go
index dce58b433..eb31c4369 100644
--- a/vendor/github.com/uber/jaeger-client-go/zipkin_thrift_span.go
+++ b/vendor/github.com/uber/jaeger-client-go/zipkin_thrift_span.go
@@ -48,13 +48,19 @@ func BuildZipkinThrift(s *Span) *z.Span {
 	if parentID != 0 {
 		ptrParentID = &parentID
 	}
+	traceIDHigh := int64(span.context.traceID.High)
+	var ptrTraceIDHigh *int64
+	if traceIDHigh != 0 {
+		ptrTraceIDHigh = &traceIDHigh
+	}
 	timestamp := utils.TimeToMicrosecondsSinceEpochInt64(span.startTime)
 	duration := span.duration.Nanoseconds() / int64(time.Microsecond)
 	endpoint := &z.Endpoint{
 		ServiceName: span.tracer.serviceName,
 		Ipv4:        int32(span.tracer.hostIPv4)}
 	thriftSpan := &z.Span{
-		TraceID:           int64(span.context.traceID.Low), // TODO upgrade zipkin thrift and use TraceIdHigh
+		TraceID:           int64(span.context.traceID.Low),
+		TraceIDHigh:       ptrTraceIDHigh,
 		ID:                int64(span.context.spanID),
 		ParentID:          ptrParentID,
 		Name:              span.operationName,
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/factory.go b/vendor/github.com/uber/jaeger-lib/metrics/factory.go
index a744a890d..0ead061eb 100644
--- a/vendor/github.com/uber/jaeger-lib/metrics/factory.go
+++ b/vendor/github.com/uber/jaeger-lib/metrics/factory.go
@@ -14,14 +14,48 @@
 
 package metrics
 
+import (
+	"time"
+)
+
+// NSOptions defines the name and tags map associated with a factory namespace
+type NSOptions struct {
+	Name string
+	Tags map[string]string
+}
+
+// Options defines the information associated with a metric
+type Options struct {
+	Name string
+	Tags map[string]string
+	Help string
+}
+
+// TimerOptions defines the information associated with a metric
+type TimerOptions struct {
+	Name    string
+	Tags    map[string]string
+	Help    string
+	Buckets []time.Duration
+}
+
+// HistogramOptions defines the information associated with a metric
+type HistogramOptions struct {
+	Name    string
+	Tags    map[string]string
+	Help    string
+	Buckets []float64
+}
+
 // Factory creates new metrics
 type Factory interface {
-	Counter(name string, tags map[string]string) Counter
-	Timer(name string, tags map[string]string) Timer
-	Gauge(name string, tags map[string]string) Gauge
+	Counter(metric Options) Counter
+	Timer(metric TimerOptions) Timer
+	Gauge(metric Options) Gauge
+	Histogram(metric HistogramOptions) Histogram
 
 	// Namespace returns a nested metrics factory.
-	Namespace(name string, tags map[string]string) Factory
+	Namespace(scope NSOptions) Factory
 }
 
 // NullFactory is a metrics factory that returns NullCounter, NullTimer, and NullGauge.
@@ -29,7 +63,16 @@ var NullFactory Factory = nullFactory{}
 
 type nullFactory struct{}
 
-func (nullFactory) Counter(name string, tags map[string]string) Counter   { return NullCounter }
-func (nullFactory) Timer(name string, tags map[string]string) Timer       { return NullTimer }
-func (nullFactory) Gauge(name string, tags map[string]string) Gauge       { return NullGauge }
-func (nullFactory) Namespace(name string, tags map[string]string) Factory { return NullFactory }
+func (nullFactory) Counter(options Options) Counter {
+	return NullCounter
+}
+func (nullFactory) Timer(options TimerOptions) Timer {
+	return NullTimer
+}
+func (nullFactory) Gauge(options Options) Gauge {
+	return NullGauge
+}
+func (nullFactory) Histogram(options HistogramOptions) Histogram {
+	return NullHistogram
+}
+func (nullFactory) Namespace(scope NSOptions) Factory { return NullFactory }
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/histogram.go b/vendor/github.com/uber/jaeger-lib/metrics/histogram.go
new file mode 100644
index 000000000..d3bd6174f
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/histogram.go
@@ -0,0 +1,28 @@
+// Copyright (c) 2018 The Jaeger Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package metrics
+
+// Histogram that keeps track of a distribution of values.
+type Histogram interface {
+	// Records the value passed in.
+	Record(float64)
+}
+
+// NullHistogram that does nothing
+var NullHistogram Histogram = nullHistogram{}
+
+type nullHistogram struct{}
+
+func (nullHistogram) Record(float64) {}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/keys.go b/vendor/github.com/uber/jaeger-lib/metrics/keys.go
new file mode 100644
index 000000000..c24445a10
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-lib/metrics/keys.go
@@ -0,0 +1,35 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package metrics
+
+import (
+	"sort"
+)
+
+// GetKey converts name+tags into a single string of the form
+// "name|tag1=value1|...|tagN=valueN", where tag names are
+// sorted alphabetically.
+func GetKey(name string, tags map[string]string, tagsSep string, tagKVSep string) string {
+	keys := make([]string, 0, len(tags))
+	for k := range tags {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	key := name
+	for _, k := range keys {
+		key = key + tagsSep + k + tagKVSep + tags[k]
+	}
+	return key
+}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/local.go b/vendor/github.com/uber/jaeger-lib/metrics/local.go
deleted file mode 100644
index 217d30600..000000000
--- a/vendor/github.com/uber/jaeger-lib/metrics/local.go
+++ /dev/null
@@ -1,337 +0,0 @@
-// Copyright (c) 2017 Uber Technologies, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package metrics
-
-import (
-	"sort"
-	"sync"
-	"sync/atomic"
-	"time"
-
-	"github.com/codahale/hdrhistogram"
-)
-
-// This is intentionally very similar to github.com/codahale/metrics, the
-// main difference being that counters/gauges are scoped to the provider
-// rather than being global (to facilitate testing).
-
-// A LocalBackend is a metrics provider which aggregates data in-vm, and
-// allows exporting snapshots to shove the data into a remote collector
-type LocalBackend struct {
-	cm       sync.Mutex
-	gm       sync.Mutex
-	tm       sync.Mutex
-	counters map[string]*int64
-	gauges   map[string]*int64
-	timers   map[string]*localBackendTimer
-	stop     chan struct{}
-	wg       sync.WaitGroup
-	TagsSep  string
-	TagKVSep string
-}
-
-// NewLocalBackend returns a new LocalBackend. The collectionInterval is the histogram
-// time window for each timer.
-func NewLocalBackend(collectionInterval time.Duration) *LocalBackend {
-	b := &LocalBackend{
-		counters: make(map[string]*int64),
-		gauges:   make(map[string]*int64),
-		timers:   make(map[string]*localBackendTimer),
-		stop:     make(chan struct{}),
-		TagsSep:  "|",
-		TagKVSep: "=",
-	}
-	if collectionInterval == 0 {
-		// Use one histogram time window for all timers
-		return b
-	}
-	b.wg.Add(1)
-	go b.runLoop(collectionInterval)
-	return b
-}
-
-// Clear discards accumulated stats
-func (b *LocalBackend) Clear() {
-	b.cm.Lock()
-	defer b.cm.Unlock()
-	b.gm.Lock()
-	defer b.gm.Unlock()
-	b.tm.Lock()
-	defer b.tm.Unlock()
-	b.counters = make(map[string]*int64)
-	b.gauges = make(map[string]*int64)
-	b.timers = make(map[string]*localBackendTimer)
-}
-
-func (b *LocalBackend) runLoop(collectionInterval time.Duration) {
-	defer b.wg.Done()
-	ticker := time.NewTicker(collectionInterval)
-	for {
-		select {
-		case <-ticker.C:
-			b.tm.Lock()
-			timers := make(map[string]*localBackendTimer, len(b.timers))
-			for timerName, timer := range b.timers {
-				timers[timerName] = timer
-			}
-			b.tm.Unlock()
-
-			for _, t := range timers {
-				t.Lock()
-				t.hist.Rotate()
-				t.Unlock()
-			}
-		case <-b.stop:
-			ticker.Stop()
-			return
-		}
-	}
-}
-
-// IncCounter increments a counter value
-func (b *LocalBackend) IncCounter(name string, tags map[string]string, delta int64) {
-	name = GetKey(name, tags, b.TagsSep, b.TagKVSep)
-	b.cm.Lock()
-	defer b.cm.Unlock()
-	counter := b.counters[name]
-	if counter == nil {
-		b.counters[name] = new(int64)
-		*b.counters[name] = delta
-		return
-	}
-	atomic.AddInt64(counter, delta)
-}
-
-// UpdateGauge updates the value of a gauge
-func (b *LocalBackend) UpdateGauge(name string, tags map[string]string, value int64) {
-	name = GetKey(name, tags, b.TagsSep, b.TagKVSep)
-	b.gm.Lock()
-	defer b.gm.Unlock()
-	gauge := b.gauges[name]
-	if gauge == nil {
-		b.gauges[name] = new(int64)
-		*b.gauges[name] = value
-		return
-	}
-	atomic.StoreInt64(gauge, value)
-}
-
-// RecordTimer records a timing duration
-func (b *LocalBackend) RecordTimer(name string, tags map[string]string, d time.Duration) {
-	name = GetKey(name, tags, b.TagsSep, b.TagKVSep)
-	timer := b.findOrCreateTimer(name)
-	timer.Lock()
-	timer.hist.Current.RecordValue(int64(d / time.Millisecond))
-	timer.Unlock()
-}
-
-func (b *LocalBackend) findOrCreateTimer(name string) *localBackendTimer {
-	b.tm.Lock()
-	defer b.tm.Unlock()
-	if t, ok := b.timers[name]; ok {
-		return t
-	}
-
-	t := &localBackendTimer{
-		hist: hdrhistogram.NewWindowed(5, 0, int64((5*time.Minute)/time.Millisecond), 1),
-	}
-	b.timers[name] = t
-	return t
-}
-
-type localBackendTimer struct {
-	sync.Mutex
-	hist *hdrhistogram.WindowedHistogram
-}
-
-var (
-	percentiles = map[string]float64{
-		"P50":  50,
-		"P75":  75,
-		"P90":  90,
-		"P95":  95,
-		"P99":  99,
-		"P999": 99.9,
-	}
-)
-
-// Snapshot captures a snapshot of the current counter and gauge values
-func (b *LocalBackend) Snapshot() (counters, gauges map[string]int64) {
-	b.cm.Lock()
-	defer b.cm.Unlock()
-
-	counters = make(map[string]int64, len(b.counters))
-	for name, value := range b.counters {
-		counters[name] = atomic.LoadInt64(value)
-	}
-
-	b.gm.Lock()
-	defer b.gm.Unlock()
-
-	gauges = make(map[string]int64, len(b.gauges))
-	for name, value := range b.gauges {
-		gauges[name] = atomic.LoadInt64(value)
-	}
-
-	b.tm.Lock()
-	timers := make(map[string]*localBackendTimer)
-	for timerName, timer := range b.timers {
-		timers[timerName] = timer
-	}
-	b.tm.Unlock()
-
-	for timerName, timer := range timers {
-		timer.Lock()
-		hist := timer.hist.Merge()
-		timer.Unlock()
-		for name, q := range percentiles {
-			gauges[timerName+"."+name] = hist.ValueAtQuantile(q)
-		}
-	}
-
-	return
-}
-
-// Stop cleanly closes the background goroutine spawned by NewLocalBackend.
-func (b *LocalBackend) Stop() {
-	close(b.stop)
-	b.wg.Wait()
-}
-
-// GetKey converts name+tags into a single string of the form
-// "name|tag1=value1|...|tagN=valueN", where tag names are
-// sorted alphabetically.
-func GetKey(name string, tags map[string]string, tagsSep string, tagKVSep string) string {
-	keys := make([]string, 0, len(tags))
-	for k := range tags {
-		keys = append(keys, k)
-	}
-	sort.Strings(keys)
-	key := name
-	for _, k := range keys {
-		key = key + tagsSep + k + tagKVSep + tags[k]
-	}
-	return key
-}
-
-type stats struct {
-	name         string
-	tags         map[string]string
-	localBackend *LocalBackend
-}
-
-type localTimer struct {
-	stats
-}
-
-func (l *localTimer) Record(d time.Duration) {
-	l.localBackend.RecordTimer(l.name, l.tags, d)
-}
-
-type localCounter struct {
-	stats
-}
-
-func (l *localCounter) Inc(delta int64) {
-	l.localBackend.IncCounter(l.name, l.tags, delta)
-}
-
-type localGauge struct {
-	stats
-}
-
-func (l *localGauge) Update(value int64) {
-	l.localBackend.UpdateGauge(l.name, l.tags, value)
-}
-
-// LocalFactory stats factory that creates metrics that are stored locally
-type LocalFactory struct {
-	*LocalBackend
-	namespace string
-	tags      map[string]string
-}
-
-// NewLocalFactory returns a new LocalMetricsFactory
-func NewLocalFactory(collectionInterval time.Duration) *LocalFactory {
-	return &LocalFactory{
-		LocalBackend: NewLocalBackend(collectionInterval),
-	}
-}
-
-// appendTags adds the tags to the namespace tags and returns a combined map.
-func (l *LocalFactory) appendTags(tags map[string]string) map[string]string {
-	newTags := make(map[string]string)
-	for k, v := range l.tags {
-		newTags[k] = v
-	}
-	for k, v := range tags {
-		newTags[k] = v
-	}
-	return newTags
-}
-
-func (l *LocalFactory) newNamespace(name string) string {
-	if l.namespace == "" {
-		return name
-	}
-
-	if name == "" {
-		return l.namespace
-	}
-
-	return l.namespace + "." + name
-}
-
-// Counter returns a local stats counter
-func (l *LocalFactory) Counter(name string, tags map[string]string) Counter {
-	return &localCounter{
-		stats{
-			name:         l.newNamespace(name),
-			tags:         l.appendTags(tags),
-			localBackend: l.LocalBackend,
-		},
-	}
-}
-
-// Timer returns a local stats timer.
-func (l *LocalFactory) Timer(name string, tags map[string]string) Timer {
-	return &localTimer{
-		stats{
-			name:         l.newNamespace(name),
-			tags:         l.appendTags(tags),
-			localBackend: l.LocalBackend,
-		},
-	}
-}
-
-// Gauge returns a local stats gauge.
-func (l *LocalFactory) Gauge(name string, tags map[string]string) Gauge {
-	return &localGauge{
-		stats{
-			name:         l.newNamespace(name),
-			tags:         l.appendTags(tags),
-			localBackend: l.LocalBackend,
-		},
-	}
-}
-
-// Namespace returns a new namespace.
-func (l *LocalFactory) Namespace(name string, tags map[string]string) Factory {
-	return &LocalFactory{
-		namespace:    l.newNamespace(name),
-		tags:         l.appendTags(tags),
-		LocalBackend: l.LocalBackend,
-	}
-}
diff --git a/vendor/github.com/uber/jaeger-lib/metrics/metrics.go b/vendor/github.com/uber/jaeger-lib/metrics/metrics.go
index 0b97707b0..0c6396888 100644
--- a/vendor/github.com/uber/jaeger-lib/metrics/metrics.go
+++ b/vendor/github.com/uber/jaeger-lib/metrics/metrics.go
@@ -17,23 +17,29 @@ package metrics
 import (
 	"fmt"
 	"reflect"
+	"strconv"
 	"strings"
 )
 
-// Init initializes the passed in metrics and initializes its fields using the passed in factory.
-func Init(metrics interface{}, factory Factory, globalTags map[string]string) {
-	if err := initMetrics(metrics, factory, globalTags); err != nil {
-		panic(err.Error())
-	}
-}
-
-// initMetrics uses reflection to initialize a struct containing metrics fields
+// MustInit initializes the passed in metrics and initializes its fields using the passed in factory.
+//
+// It uses reflection to initialize a struct containing metrics fields
 // by assigning new Counter/Gauge/Timer values with the metric name retrieved
 // from the `metric` tag and stats tags retrieved from the `tags` tag.
 //
 // Note: all fields of the struct must be exported, have a `metric` tag, and be
 // of type Counter or Gauge or Timer.
-func initMetrics(m interface{}, factory Factory, globalTags map[string]string) error {
+//
+// Errors during Init lead to a panic.
+func MustInit(metrics interface{}, factory Factory, globalTags map[string]string) {
+	if err := Init(metrics, factory, globalTags); err != nil {
+		panic(err.Error())
+	}
+}
+
+// Init does the same as Init, but returns an error instead of
+// panicking.
+func Init(m interface{}, factory Factory, globalTags map[string]string) error {
 	// Allow user to opt out of reporting metrics by passing in nil.
 	if factory == nil {
 		factory = NullFactory
@@ -42,6 +48,7 @@ func initMetrics(m interface{}, factory Factory, globalTags map[string]string) e
 	counterPtrType := reflect.TypeOf((*Counter)(nil)).Elem()
 	gaugePtrType := reflect.TypeOf((*Gauge)(nil)).Elem()
 	timerPtrType := reflect.TypeOf((*Timer)(nil)).Elem()
+	histogramPtrType := reflect.TypeOf((*Histogram)(nil)).Elem()
 
 	v := reflect.ValueOf(m).Elem()
 	t := v.Type()
@@ -50,6 +57,7 @@ func initMetrics(m interface{}, factory Factory, globalTags map[string]string) e
 		for k, v := range globalTags {
 			tags[k] = v
 		}
+		var buckets []float64
 		field := t.Field(i)
 		metric := field.Tag.Get("metric")
 		if metric == "" {
@@ -67,13 +75,57 @@ func initMetrics(m interface{}, factory Factory, globalTags map[string]string) e
 				tags[tag[0]] = tag[1]
 			}
 		}
+		if bucketString := field.Tag.Get("buckets"); bucketString != "" {
+			if field.Type.AssignableTo(timerPtrType) {
+				// TODO: Parse timer duration buckets
+				return fmt.Errorf(
+					"Field [%s]: Buckets are not currently initialized for timer metrics",
+					field.Name)
+			} else if field.Type.AssignableTo(histogramPtrType) {
+				bucketValues := strings.Split(bucketString, ",")
+				for _, bucket := range bucketValues {
+					b, err := strconv.ParseFloat(bucket, 64)
+					if err != nil {
+						return fmt.Errorf(
+							"Field [%s]: Bucket [%s] could not be converted to float64 in 'buckets' string [%s]",
+							field.Name, bucket, bucketString)
+					}
+					buckets = append(buckets, b)
+				}
+			} else {
+				return fmt.Errorf(
+					"Field [%s]: Buckets should only be defined for Timer and Histogram metric types",
+					field.Name)
+			}
+		}
+		help := field.Tag.Get("help")
 		var obj interface{}
 		if field.Type.AssignableTo(counterPtrType) {
-			obj = factory.Counter(metric, tags)
+			obj = factory.Counter(Options{
+				Name: metric,
+				Tags: tags,
+				Help: help,
+			})
 		} else if field.Type.AssignableTo(gaugePtrType) {
-			obj = factory.Gauge(metric, tags)
+			obj = factory.Gauge(Options{
+				Name: metric,
+				Tags: tags,
+				Help: help,
+			})
 		} else if field.Type.AssignableTo(timerPtrType) {
-			obj = factory.Timer(metric, tags)
+			// TODO: Add buckets once parsed (see TODO above)
+			obj = factory.Timer(TimerOptions{
+				Name: metric,
+				Tags: tags,
+				Help: help,
+			})
+		} else if field.Type.AssignableTo(histogramPtrType) {
+			obj = factory.Histogram(HistogramOptions{
+				Name:    metric,
+				Tags:    tags,
+				Help:    help,
+				Buckets: buckets,
+			})
 		} else {
 			return fmt.Errorf(
 				"Field %s is not a pointer to timer, gauge, or counter",