traefik/vendor/github.com/uber/jaeger-client-go/metrics.go

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2018-01-10 16:48:04 +00:00
// Copyright (c) 2016 Uber Technologies, Inc.
//
// 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:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// 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.
package jaeger
import (
"github.com/uber/jaeger-lib/metrics"
)
// 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"`
// Number of traces started by this tracer as not sampled
TracesStartedNotSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=n"`
// Number of externally started sampled traces this tracer joined
TracesJoinedSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=y"`
// Number of externally started not-sampled traces this tracer joined
TracesJoinedNotSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=n"`
// Number of sampled spans started by this tracer
SpansStarted metrics.Counter `metric:"spans" tags:"group=lifecycle,state=started"`
// Number of sampled spans finished by this tracer
SpansFinished metrics.Counter `metric:"spans" tags:"group=lifecycle,state=finished"`
// Number of sampled spans started by this tracer
SpansSampled metrics.Counter `metric:"spans" tags:"group=sampling,sampled=y"`
// Number of not-sampled spans started by this tracer
SpansNotSampled metrics.Counter `metric:"spans" tags:"group=sampling,sampled=n"`
// Number of errors decoding tracing context
DecodingErrors metrics.Counter `metric:"decoding-errors"`
// Number of spans successfully reported
ReporterSuccess metrics.Counter `metric:"reporter-spans" tags:"state=success"`
// Number of spans in failed attempts to report
ReporterFailure metrics.Counter `metric:"reporter-spans" tags:"state=failure"`
// Number of spans dropped due to internal queue overflow
ReporterDropped metrics.Counter `metric:"reporter-spans" tags:"state=dropped"`
// Current number of spans in the reporter queue
ReporterQueueLength metrics.Gauge `metric:"reporter-queue"`
// Number of times the Sampler succeeded to retrieve sampling strategy
SamplerRetrieved metrics.Counter `metric:"sampler" tags:"state=retrieved"`
// Number of times the Sampler succeeded to retrieve and update sampling strategy
SamplerUpdated metrics.Counter `metric:"sampler" tags:"state=updated"`
// Number of times the Sampler failed to update sampling strategy
SamplerUpdateFailure metrics.Counter `metric:"sampler" tags:"state=failure,phase=updating"`
// Number of times the Sampler failed to retrieve sampling strategy
SamplerQueryFailure metrics.Counter `metric:"sampler" tags:"state=failure,phase=query"`
}
// NewMetrics creates a new Metrics struct and initializes it.
func NewMetrics(factory metrics.Factory, globalTags map[string]string) *Metrics {
m := &Metrics{}
metrics.Init(m, factory.Namespace("jaeger", nil), globalTags)
return m
}
// NewNullMetrics creates a new Metrics struct that won't report any metrics.
func NewNullMetrics() *Metrics {
return NewMetrics(metrics.NullFactory, nil)
}