83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
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/*
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*
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* Copyright 2016 gRPC authors.
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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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*
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*/
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package main
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import (
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"flag"
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"fmt"
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"io"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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"google.golang.org/grpc/grpclog"
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metricspb "google.golang.org/grpc/stress/grpc_testing"
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)
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var (
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metricsServerAddress = flag.String("metrics_server_address", "", "The metrics server addresses in the fomrat <hostname>:<port>")
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totalOnly = flag.Bool("total_only", false, "If true, this prints only the total value of all gauges")
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)
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func printMetrics(client metricspb.MetricsServiceClient, totalOnly bool) {
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stream, err := client.GetAllGauges(context.Background(), &metricspb.EmptyMessage{})
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if err != nil {
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grpclog.Fatalf("failed to call GetAllGuages: %v", err)
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}
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var (
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overallQPS int64
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rpcStatus error
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)
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for {
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gaugeResponse, err := stream.Recv()
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if err != nil {
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rpcStatus = err
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break
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}
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if _, ok := gaugeResponse.GetValue().(*metricspb.GaugeResponse_LongValue); !ok {
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panic(fmt.Sprintf("gauge %s is not a long value", gaugeResponse.Name))
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}
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v := gaugeResponse.GetLongValue()
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if !totalOnly {
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grpclog.Printf("%s: %d", gaugeResponse.Name, v)
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}
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overallQPS += v
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}
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if rpcStatus != io.EOF {
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grpclog.Fatalf("failed to finish server streaming: %v", rpcStatus)
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}
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grpclog.Printf("overall qps: %d", overallQPS)
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}
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func main() {
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flag.Parse()
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if *metricsServerAddress == "" {
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grpclog.Fatalf("Metrics server address is empty.")
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}
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conn, err := grpc.Dial(*metricsServerAddress, grpc.WithInsecure())
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if err != nil {
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grpclog.Fatalf("cannot connect to metrics server: %v", err)
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}
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defer conn.Close()
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c := metricspb.NewMetricsServiceClient(conn)
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printMetrics(c, *totalOnly)
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}
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