dheerajturaga opened a new pull request, #68039:
URL: https://github.com/apache/airflow/pull/68039
The Execution API trace-propagation dependency attaches an OpenTelemetry
context before yielding and detaches it afterwards. When a client disconnects
or the request is cancelled, the dependency generator is force-closed from a
different asyncio task, so the detach ran against a contextvars.Token created
in a different Context. OpenTelemetry caught and logged that ValueError at
ERROR ("Failed to detach context") before our suppression could see it,
producing alarming but harmless log noise on the Dag processor and other
clients.
Skip the detach on the GeneratorExit unwind path, where the originating
Context is being discarded anyway, and detach only on normal completion.
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ClaudeCode Opus 4.8
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