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fix(storage): Add telemetry tracing support for async stream Close()#16118
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This pull request implements the Close method override in AsyncWriterConnectionTracing to enable OpenTelemetry tracing for close operations. It captures metadata such as message type, message ID, thread ID, and payload size, and logs a "gl-cpp.close" event. Additionally, corresponding unit tests (Close and CloseError) have been added to verify successful and failed close operations and their tracing events. I have no feedback to provide as there are no review comments.
v-pratap
approved these changes
Jun 4, 2026
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This PR introduces OpenTelemetry tracing support for the newly introduced GCS Close() operation in the connection wrapper, ensuring end-to-end observability on connection half-close teardowns. This is a follow-up to #16112.