How Remote sampling works without jaeger agent samping port 5778

[Narenderbhcu]

Hi, as per below link, both Jaeger Agent and OpenTelemetry Collector implement the Jaeger sampling service endpoint.

[https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/samplers/jaegerremote]

jaegerRemoteSampler := jaegerremote.New(
"your-service-name",
jaegerremote.WithSamplingServerURL("http://{sampling_service_host_name}:5778"),
jaegerremote.WithSamplingRefreshInterval(10*time.Second),
jaegerremote.WithInitialSampler(trace.TraceIDRatioBased(0.5)),
)

tp := trace.NewTracerProvider(
	trace.WithSampler(jaegerRemoteSampler),
	...
)
otel.SetTracerProvider(tp)

I am trying to use opentelemetry collector sampling port instead of jaeger agent port "http://{sampling_service_host_name}:5778", but I am unable to fetch sampling strategy information from the backend.
Tried with
jaegerremote.WithSamplingServerURL("http://{sampling_service_host_name}:4317"), and jaegerremote.WithSamplingServerURL("http://{sampling_service_host_name}:4318"),

but not working, please let me know how remote sampling work using opentelemetry collector sampling service endpoint, if share any reference if you have.

[MrAlias]

Please see #3147, it should help clarify Jaeger endpoints.

Closing as #3147 looks to have resolved this. Please reopen if this is not the case.