mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
93 lines
2.9 KiB
Go
93 lines
2.9 KiB
Go
// Copyright 2016 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v3rpc
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import (
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"strings"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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)
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var (
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receivedCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "etcd",
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Subsystem: "grpc",
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Name: "requests_total",
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Help: "Counter of received requests.",
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}, []string{"grpc_service", "grpc_method"})
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failedCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "etcd",
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Subsystem: "grpc",
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Name: "requests_failed_total",
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Help: "Counter of failed requests.",
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}, []string{"grpc_service", "grpc_method", "grpc_code"})
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handlingDuration = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "etcd",
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Subsystem: "grpc",
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Name: "unary_requests_duration_seconds",
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Help: "Bucketed histogram of processing time (s) of handled unary (non-stream) requests.",
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Buckets: prometheus.ExponentialBuckets(0.0005, 2, 13),
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}, []string{"grpc_service", "grpc_method"})
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)
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func metricsUnaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
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service, method := splitMethodName(info.FullMethod)
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receivedCounter.WithLabelValues(service, method).Inc()
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start := time.Now()
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resp, err = handler(ctx, req)
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if err != nil {
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failedCounter.WithLabelValues(service, method, grpc.Code(err).String()).Inc()
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}
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handlingDuration.WithLabelValues(service, method).Observe(time.Since(start).Seconds())
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return resp, err
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}
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func metricsStreamInterceptor(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
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service, method := splitMethodName(info.FullMethod)
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receivedCounter.WithLabelValues(service, method).Inc()
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err := handler(srv, ss)
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if err != nil {
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failedCounter.WithLabelValues(service, method, grpc.Code(err).String()).Inc()
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}
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return err
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}
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func splitMethodName(fullMethodName string) (string, string) {
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fullMethodName = strings.TrimPrefix(fullMethodName, "/") // remove leading slash
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if i := strings.Index(fullMethodName, "/"); i >= 0 {
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return fullMethodName[:i], fullMethodName[i+1:]
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}
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return "unknown", "unknown"
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}
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func init() {
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prometheus.MustRegister(receivedCounter)
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prometheus.MustRegister(failedCounter)
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prometheus.MustRegister(handlingDuration)
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}
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