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Added pprof profiling to monitor heap memory #318

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Added pprof profiling to monitor heap memory #318

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2732aff
Added pprof profiling to monitor heap memory
rutul25 Mar 9, 2022
890412a
lint check improvement
rutul25 Mar 9, 2022
ff61064
added port for pprof
rutul25 Mar 9, 2022
3cdd82f
wip
rutul25 Mar 9, 2022
0f10480
kafka client configs
Mar 25, 2022
faecdaf
Introduce batch and report configs
Mar 29, 2022
ec318d7
Restrict channel size
Apr 4, 2022
58bdf45
Enable batch producer
Apr 4, 2022
b3385f6
Remove duplicate key
Apr 4, 2022
b7efb6a
Remove batch producer mode
Apr 5, 2022
9571cc1
Change debug level
Apr 5, 2022
9a7a49e
Remove debug logs
Apr 5, 2022
41dddd8
Increase channel size
Apr 5, 2022
f510472
lastest master
akashgoyal96 Jul 4, 2022
e1b36af
Merge branch 'master' of github.com:razorpay/metro into pprof-testing
akashgoyal96 Jul 5, 2022
59a641b
Merge branch 'master' into pprof-testing
Jul 20, 2022
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2 changes: 1 addition & 1 deletion build/docker/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,7 @@ WORKDIR /app
RUN apk add --update --no-cache dumb-init su-exec ca-certificates curl
RUN mkdir -p /app/public

EXPOSE 8081 8082 8083 8084 3000
EXPOSE 8081 8082 8083 8084 3000 8080

RUN chmod +x entrypoint.sh probe.sh
ENTRYPOINT ["/app/entrypoint.sh", "metro"]
20 changes: 19 additions & 1 deletion cmd/service/metro/metro.go
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Expand Up @@ -12,6 +12,11 @@ import (
configreader "github.com/razorpay/metro/pkg/config"
"github.com/razorpay/metro/pkg/encryption"
"github.com/razorpay/metro/pkg/logger"

"net/http"

// blank import added for testing.
_ "net/http/pprof"
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🚫 [golangci] reported by reviewdog 🐶
G108: Profiling endpoint is automatically exposed on /debug/pprof (gosec)

)

const (
Expand All @@ -38,7 +43,7 @@ func isValidComponent(component string) bool {
}

// Init initializes all modules (logger, tracing, config, metro component)
func Init(_ context.Context, env string, componentName string) {
func Init(ctx context.Context, env string, componentName string) {
// componentName validation
ok := isValidComponent(componentName)
if !ok {
Expand Down Expand Up @@ -68,6 +73,8 @@ func Init(_ context.Context, env string, componentName string) {

err = boot.InitMonitoring(env, appConfig.App, appConfig.Sentry, appConfig.Tracing)

setPprofProfiles(ctx, componentName)

if err != nil {
log.Fatalf("error in setting up monitoring : %v", err)
}
Expand Down Expand Up @@ -114,3 +121,14 @@ func Run(ctx context.Context) {

logger.Ctx(ctx).Infow("stopped metro")
}

// sets up pprof profile for perfomance monitoring
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🚫 [golangci] reported by reviewdog 🐶
perfomance is a misspelling of performance (misspell)

func setPprofProfiles(ctx context.Context, componentName string) {
logger.Ctx(ctx).Infow("initialising pprof profiles")
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🚫 [golangci] reported by reviewdog 🐶
initialising is a misspelling of initializing (misspell)

go func() {
myMux := http.DefaultServeMux
if err := http.ListenAndServe("localhost:8080", myMux); err != nil {
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Found an HTTP server without TLS. Use 'http.ListenAndServeTLS' instead. See https://golang.org/pkg/net/http/#ListenAndServeTLS for more information.

🔴 Fix or ignore this finding to merge your pull request.
🙈 From go.lang.security.audit.net.use-tls.use-tls.

logger.Ctx(ctx).Fatalw("Error when starting or running %v pprof http server: %v", componentName, err)
}
}()
}