should client otel span be parent of server span

[geib]

Using the opentelemetry grpcbox instrumentation library and I am seeing both the client and server spans in Zipkin. However, I expected to see one span, with the client span being the parent of the server span. Or perhaps the client span with the server span a sub-span of the client. Both my client and server are Erlang.

[tsloughter]

Do you mean you expect one trace? You are seeing multiple traces?

[geib]

Sorry, yes I expected one trace, and I am seeing two.

[tsloughter]

Ah ok. Yes, then that is a bug.

[geib]

I am using grpcbox 0.16.0 and opentelemetry_grpcbox 0.2.0, correct versions?

[tsloughter]

Yea, those are the latest.

[geib]

Just an FYI. I switched to use the opencensus interceptor included with grpcbox and the behavior is exactly the same, I get two traces, one for the client and one for the server.