66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package main
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import (
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"flag"
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"io"
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"time"
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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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metricsServerAddressPtr = flag.String("metrics_server_address", "", "The metrics server addresses in the fomrat <hostname>:<port>")
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totalOnlyPtr = flag.Bool("total_only", false, "If true, this prints only the total value of all gauges")
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)
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const timeoutSeconds = 10
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func printMetrics(client metricspb.MetricsServiceClient, totalOnly bool) {
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ctx, _ := context.WithTimeout(context.Background(), timeoutSeconds*time.Second)
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stream, err := client.GetAllGauges(ctx, &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 overallQPS int64
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var rpcStatus error
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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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if !totalOnly {
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grpclog.Printf("%s: %d", gaugeResponse.Name, gaugeResponse.GetLongValue())
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}
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overallQPS += gaugeResponse.GetLongValue()
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} else {
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grpclog.Printf("gauge %s is not a long value", gaugeResponse.Name)
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}
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}
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grpclog.Printf("overall qps: %d", overallQPS)
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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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}
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func main() {
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flag.Parse()
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if len(*metricsServerAddressPtr) == 0 {
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grpclog.Fatalf("Cannot connect to the Metrics server. Please pass the address of the metrics server to connect to via the 'metrics_server_address' flag")
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}
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conn, err := grpc.Dial(*metricsServerAddressPtr, 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, *totalOnlyPtr)
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}
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