Lalit Kumar Bhasin

@TedaLIEz - If you are trying to set the authId for the User part A extension - it should be accessible via custom decorator concept. Search API examples for "Decorator"....

I thought that setting environment variable [CXXFLAGS ](https://cmake.org/cmake/help/latest/envvar/CXXFLAGS.html)before invoking gradle/gradlew should work, and cmake should pick up the compilation flags automatically from this environment variable. But seems this is not...

As per the proto-json conversion standard, u64 should be serialized to string - https://protobuf.dev/programming-guides/json/. So i believe, opentelemetry-proto is doing it correctly?

> I can see that the serialization to string is happening for the fields where below is available in the crate but this feature is not available for the mentioned...

> I see similar issue in SummaryDataPoint for the field quantile_values @nikhilsinhaparseable Will include fix for this in #2491.

Thanks for the analysis. The otel-cpp SDK does not copy or buffer attributes internally; instead, they are directly serialized from user memory by the exporter. As a result, it doesn't...

@XueSongTap i would be still reluctant to add the support within the SDK, specifically adding any new member variables to span class, and increase the span object size.

Just curious, where are you getting issue in usage of `GetSpan`? - One place it is used internally is during creation of new span in `Tracer:StartSpan()`, and usually object of...

> Are there any potential downsides to returning a statically allocated span as the default? I believe not. It should be fine to return static allocation for an invalid span....

> I wouldn't necessarily call it an "issue," but it seems suboptimal for GetSpan to allocate a new span each time a default span is needed. Ideally, it would return...