[otel.javaagent 2022-09-27 16:36:02:129 +0000] [OkHttp http://localhost:4317/...] ERROR io.opentelemetry.exporter.internal.grpc.OkHttpGrpcExporter - Failed to export metrics. The request could not be executed. Full error message: Failed to connect to localhost/127.0.0.1:4317

If SigNoz is not part of the same network and running on the host machine you might have to use something like

host.docker.internal

or if it’s part of same network use the service name in place of

localhost

.

That's right, bro. build-in dns docker 'host.docker.internal' can resolve connections between different networks. currently, I can run it with docker. Thank you so much! Bro