Trask Stalnaker

@marctc @mariomac can you add more details about the problem we're trying to solve here? thanks!

Also, these attributes aren't listed today on [rpc-spans.md](https://github.com/open-telemetry/semantic-conventions/blob/main/docs/rpc/rpc-spans.md) For unary calls - may be on span For streaming - ??? These attributes can also be post-stability (similar to HTTP)

and `type` changed from `span` to `attribute_group`

hi @pepeshore! have you seen the [Collector Tail-Based Sampler](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/tailsamplingprocessor)?

hi @pepeshore, here's a sketch of how you could implement this today: ``` /** * A sampler that delegates to another sampler but converts RECORD_AND_SAMPLE * decisions to RECORD_ONLY. This...

> However, [Java's implementation](https://github.com/open-telemetry/opentelemetry-java/blob/main/sdk-extensions/autoconfigure/src/main/java/io/opentelemetry/sdk/autoconfigure/AutoConfiguredOpenTelemetrySdkBuilder.java#L449) seems closer to the Ruby PR. Configuration is skipped, but I don't know enough about Java to know if that means you cannot create working tracers,...

ya, you can use the Java SDK without the autoconfigure module, in which case `OTEL_SDK_DISABLED` has no effect

> @trask thinking about your response, and reading the spec, should `OTEL_SDK_DISABLED` also have effect with custom SDK config (i.e. without autoconfigure)? I think this falls under (**emphasis added**) https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/configuration/sdk-environment-variables.md#implementation-guidelines:...

> Does this mean an implementation can choose to apply an environment variable configuration only in an autoconfiguration component and have no impact on lower-level ways to access the SDK?...

hi @aka14048, please ask your question in https://github.com/open-telemetry/opentelemetry-java, thanks!