add retries for stackdriver exporters in go
Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
This commit is contained in:
parent
d01f525453
commit
d08a58cc21
4 changed files with 96 additions and 61 deletions
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@ -6,6 +6,7 @@ import (
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"log"
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"net"
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"os"
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"time"
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"github.com/google/uuid"
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"go.opencensus.io/exporter/stackdriver"
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@ -39,7 +40,7 @@ func main() {
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port = os.Getenv("PORT")
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}
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initTracing()
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go initTracing()
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svc := new(checkoutService)
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mustMapEnv(&svc.shippingSvcAddr, "SHIPPING_SERVICE_ADDR")
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@ -62,15 +63,23 @@ func main() {
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}
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func initTracing() {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("failed to initialize stackdriver exporter: %+v", err)
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log.Println("skipping uploading traces to stackdriver")
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Println("registered stackdriver tracing")
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// TODO(ahmetb) this method is duplicated in other microservices using Go
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// since they are not sharing packages.
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for i := 1; i <= 3; i++ {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("info: failed to initialize stackdriver exporter: %+v", err)
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Print("registered stackdriver tracing")
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return
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}
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d := time.Second * 10 * time.Duration(i)
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log.Printf("sleeping %v to retry initializing stackdriver exporter", d)
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time.Sleep(d)
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}
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log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
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}
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func mustMapEnv(target *string, envKey string) {
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@ -3,7 +3,6 @@ package main
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import (
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"context"
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"fmt"
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"log"
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"net/http"
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"os"
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"time"
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@ -67,7 +66,7 @@ func main() {
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log.Level = logrus.DebugLevel
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log.Formatter = &logrus.TextFormatter{}
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initTracing()
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go initTracing(log)
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srvPort := port
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if os.Getenv("PORT") != "" {
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@ -111,16 +110,25 @@ func main() {
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log.Fatal(http.ListenAndServe(addr+":"+srvPort, handler))
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}
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func initTracing() {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("failed to initialize stackdriver exporter: %+v", err)
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log.Println("skipping uploading traces to stackdriver")
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Println("registered stackdriver tracing")
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func initTracing(log logrus.FieldLogger) {
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// TODO(ahmetb) this method is duplicated in other microservices using Go
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// since they are not sharing packages.
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for i := 1; i <= 3; i++ {
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log = log.WithField("retry", i)
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Warnf("failed to initialize stackdriver exporter: %+v", err)
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Info("registered stackdriver tracing")
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return
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}
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d := time.Second * 20 * time.Duration(i)
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log.Debugf("sleeping %v to retry initializing stackdriver exporter", d)
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time.Sleep(d)
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}
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log.Warn("could not initialize stackdriver exporter after retrying, giving up")
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}
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func mustMapEnv(target *string, envKey string) {
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@ -7,6 +7,7 @@ import (
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"log"
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"net"
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"strings"
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"time"
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pb "./genproto"
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"go.opencensus.io/exporter/stackdriver"
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@ -88,7 +89,7 @@ var catalog = []*pb.Product{
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func main() {
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flag.Parse()
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initTracing()
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go initTracing()
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log.Printf("starting grpc server at :%d", *port)
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run(*port)
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@ -107,15 +108,23 @@ func run(port int) string {
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}
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func initTracing() {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("failed to initialize stackdriver exporter: %+v", err)
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log.Println("skipping uploading traces to stackdriver")
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Println("registered stackdriver")
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// TODO(ahmetb) this method is duplicated in other microservices using Go
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// since they are not sharing packages.
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for i := 1; i <= 3; i++ {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("info: failed to initialize stackdriver exporter: %+v", err)
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Print("registered stackdriver tracing")
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return
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}
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d := time.Second * 10 * time.Duration(i)
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log.Printf("sleeping %v to retry initializing stackdriver exporter", d)
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time.Sleep(d)
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}
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log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
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}
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type productCatalog struct{}
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@ -5,6 +5,7 @@ import (
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"log"
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"net"
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"os"
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"time"
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"go.opencensus.io/exporter/stackdriver"
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"go.opencensus.io/plugin/ocgrpc"
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@ -20,6 +21,30 @@ const (
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defaultPort = "50051"
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)
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func main() {
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port := defaultPort
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if value, ok := os.LookupEnv("APP_PORT"); ok {
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port = value
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}
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port = fmt.Sprintf(":%s", port)
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go initTracing()
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lis, err := net.Listen("tcp", port)
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if err != nil {
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log.Fatalf("failed to listen: %v", err)
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}
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s := grpc.NewServer(grpc.StatsHandler(&ocgrpc.ServerHandler{}))
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pb.RegisterShippingServiceServer(s, &server{})
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log.Printf("Shipping Service listening on port %s", port)
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// Register reflection service on gRPC server.
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reflection.Register(s)
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if err := s.Serve(lis); err != nil {
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log.Fatalf("failed to serve: %v", err)
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}
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}
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// server controls RPC service responses.
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type server struct{}
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@ -62,38 +87,22 @@ func (s *server) ShipOrder(ctx context.Context, in *pb.ShipOrderRequest) (*pb.Sh
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}, nil
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}
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func main() {
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port := defaultPort
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if value, ok := os.LookupEnv("APP_PORT"); ok {
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port = value
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}
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port = fmt.Sprintf(":%s", port)
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initTracing()
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lis, err := net.Listen("tcp", port)
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if err != nil {
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log.Fatalf("failed to listen: %v", err)
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}
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s := grpc.NewServer(grpc.StatsHandler(&ocgrpc.ServerHandler{}))
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pb.RegisterShippingServiceServer(s, &server{})
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log.Printf("Shipping Service listening on port %s", port)
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// Register reflection service on gRPC server.
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reflection.Register(s)
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if err := s.Serve(lis); err != nil {
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log.Fatalf("failed to serve: %v", err)
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}
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}
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func initTracing() {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("failed to initialize stackdriver exporter: %+v", err)
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log.Println("skipping uploading traces to stackdriver")
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Println("registered stackdriver tracing")
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// TODO(ahmetb) this method is duplicated in other microservices using Go
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// since they are not sharing packages.
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for i := 1; i <= 3; i++ {
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exporter, err := stackdriver.NewExporter(stackdriver.Options{})
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if err != nil {
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log.Printf("info: failed to initialize stackdriver exporter: %+v", err)
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} else {
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trace.RegisterExporter(exporter)
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trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
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log.Print("registered stackdriver tracing")
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return
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}
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d := time.Second * 10 * time.Duration(i)
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log.Printf("sleeping %v to retry initializing stackdriver exporter", d)
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time.Sleep(d)
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}
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log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
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}
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