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Added RetryMetrics to DataDog and StatsD providers

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This commit is contained in:
Alex Antonov 2017-08-08 19:54:35 -05:00 committed by Ludovic Fernandez
parent 990ee89650
commit 6b133e24b9
5 changed files with 19 additions and 6 deletions
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5
middlewares/datadog.go
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@ -11,7 +11,8 @@ import (
"github.com/go-kit/kit/metrics/dogstatsd"
)
var _ Metrics = (Metrics)(nil)
var _ Metrics = (*Datadog)(nil)
var _ RetryMetrics = (*Datadog)(nil)
var datadogClient = dogstatsd.New("traefik.", kitlog.LoggerFunc(func(keyvals ...interface{}) error {
log.Info(keyvals)
@ -24,6 +25,7 @@ var datadogTicker *time.Ticker
const (
ddMetricsReqsName = "requests.total"
ddMetricsLatencyName = "request.duration"
ddRetriesTotalName = "backend.retries.total"
)
// Datadog is an Implementation for Metrics that exposes datadog metrics for the latency
@ -55,6 +57,7 @@ func NewDataDog(name string) *Datadog {
m.reqsCounter = datadogClient.NewCounter(ddMetricsReqsName, 1.0).With("service", name)
m.reqDurationHistogram = datadogClient.NewHistogram(ddMetricsLatencyName, 1.0).With("service", name)
m.retryCounter = datadogClient.NewCounter(ddRetriesTotalName, 1.0).With("service", name)
return &m
}

6
middlewares/datadog_test.go
View file

@ -40,10 +40,16 @@ func TestDatadog(t *testing.T) {
req1 := testhelpers.MustNewRequest(http.MethodGet, "http://localhost:3000/ok", nil)
req2 := testhelpers.MustNewRequest(http.MethodGet, "http://localhost:3000/not-found", nil)
retryListener := NewMetricsRetryListener(dd)
retryListener.Retried(1)
retryListener.Retried(2)
expected := []string{
// We are only validating counts, as it is nearly impossible to validate latency, since it varies every run
"traefik.requests.total:1.000000|c|#service:test,code:404,method:GET\n",
"traefik.requests.total:1.000000|c|#service:test,code:200,method:GET\n",
"traefik.backend.retries.total:2.000000|c|#service:test\n",
"traefik.request.duration",
}
udp.ShouldReceiveAll(t, expected, func() {

4
middlewares/metrics.go
View file

@ -65,10 +65,6 @@ func (mm *MultiMetrics) getRetryCounter() metrics.Counter {
return mm.retryCounter
}
func (mm *MultiMetrics) getWrappedMetrics() *[]Metrics {
return mm.wrappedMetrics
}
// MetricsWrapper is a Negroni compatible Handler which relies on a
// given Metrics implementation to expose and monitor Traefik Metrics.
type MetricsWrapper struct {

4
middlewares/statsd.go
View file

@ -11,7 +11,8 @@ import (
"github.com/go-kit/kit/metrics/statsd"
)
var _ Metrics = (Metrics)(nil)
var _ Metrics = (*Statsd)(nil)
var _ RetryMetrics = (*Statsd)(nil)
var statsdClient = statsd.New("traefik.", kitlog.LoggerFunc(func(keyvals ...interface{}) error {
log.Info(keyvals)
@ -48,6 +49,7 @@ func NewStatsD(name string) *Statsd {
m.reqsCounter = statsdClient.NewCounter(ddMetricsReqsName, 1.0).With("service", name)
m.reqDurationHistogram = statsdClient.NewTiming(ddMetricsLatencyName, 1.0).With("service", name)
m.retryCounter = statsdClient.NewCounter(ddRetriesTotalName, 1.0).With("service", name)
return &m
}

6
middlewares/statsd_test.go
View file

@ -40,9 +40,15 @@ func TestStatsD(t *testing.T) {
req1 := testhelpers.MustNewRequest(http.MethodGet, "http://localhost:3000/ok", nil)
req2 := testhelpers.MustNewRequest(http.MethodGet, "http://localhost:3000/not-found", nil)
retryListener := NewMetricsRetryListener(c)
retryListener.Retried(1)
retryListener.Retried(2)
expected := []string{
// We are only validating counts, as it is nearly impossible to validate latency, since it varies every run
"traefik.requests.total:2.000000|c\n",
"traefik.backend.retries.total:2.000000|c\n",
"traefik.request.duration",
}
udp.ShouldReceiveAll(t, expected, func() {