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go services: do not fail (+retry) profiler init

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Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
This commit is contained in:
Ahmet Alp Balkan 2018-07-17 11:45:09 -07:00
parent cca50463ee
commit 5bb1a3f400
4 changed files with 86 additions and 35 deletions
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34
src/checkoutservice/main.go
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@ -8,6 +8,7 @@ import (
"os"
"time"
"cloud.google.com/go/profiler"
"github.com/google/uuid"
"go.opencensus.io/exporter/stackdriver"
"go.opencensus.io/plugin/ocgrpc"
@ -18,8 +19,6 @@ import (
pb "checkoutservice/genproto"
money "checkoutservice/money"
"cloud.google.com/go/profiler"
)
const (
@ -37,22 +36,14 @@ type checkoutService struct {
}
func main() {
if err := profiler.Start(profiler.Config{
Service: "cartservice",
ServiceVersion: "1.0.0",
// ProjectID must be set if not running on GCP.
// ProjectID: "my-project",
}); err != nil {
log.Fatalf("failed to start profiler: %+v", err)
}
go initTracing()
go initProfiling("checkoutservice", "1.0.0")
port := listenPort
if os.Getenv("PORT") != "" {
port = os.Getenv("PORT")
}
go initTracing()
svc := new(checkoutService)
mustMapEnv(&svc.shippingSvcAddr, "SHIPPING_SERVICE_ADDR")
mustMapEnv(&svc.productCatalogSvcAddr, "PRODUCT_CATALOG_SERVICE_ADDR")
@ -93,6 +84,25 @@ func initTracing() {
log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
}
func initProfiling(service, version string) {
// TODO(ahmetb) this method is duplicated in other microservices using Go
// since they are not sharing packages.
for i := 1; i <= 3; i++ {
if err := profiler.Start(profiler.Config{
Service: service,
ServiceVersion: version,
// ProjectID must be set if not running on GCP.
// ProjectID: "my-project",
}); err != nil {
log.Printf("warn: failed to start profiler: %+v", err)
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver profiler", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver profiler after retrying, giving up")
}
func mustMapEnv(target *string, envKey string) {
v := os.Getenv(envKey)
if v == "" {