Lee-W opened a new pull request, #75368:
URL: https://github.com/apache/airflow/pull/75368
A deadlock is transient and the task would succeed on a retry, but the
catch-all around the state update marked the task instance FAILED, which is
permanent. The Task SDK client already retries 5xx responses from the Execution
API, so letting the deadlock surface as a 500 gives the worker that retry.
Only deadlocks are treated this way. Recognising other lock errors would
change how existing callers of is_lock_not_available_error behave.
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