New A72 changes for OpenTelemetry

[purnesh42H]

Several minor adjustments proposed in gRFC A72 (grpc/proposal#474) need to be implemented within the OpenTelemetry tracing code

• Add names for parent call span, attempt span and server span based on existing OpenCensus implementation.
  • https://github.com/grpc/grpc-go/blob/master/stats/opentelemetry/client_tracing.go
  • https://github.com/grpc/grpc-go/blob/master/stats/opentelemetry/server_tracing.go
• Remove superfluous and confusing sent and received words from Inbound message received and Outbound message sent.
  • https://github.com/grpc/grpc-go/blob/master/stats/opentelemetry/trace.go

[carsontham]

hi, I would like to help with this issue.

For the Inbound message received and Outbound message sent part, the current code already adheres to gRFC A72, using messages like Inbound compressed message and Outbound compressed message in trace.go

So it seems the remaining change is to update the span names in client_tracing.go and server_tracing.go.

Am I understanding this issue correctly?

[arjan-bal]

Hi @carsontham, @vinothkumarr227 already has #8226 open to address this issue, so we'll let him handle it.

[vinothkumarr227]

I'm looking into this. Please assign the issue to me.