dabla commented on code in PR #68377:
URL: https://github.com/apache/airflow/pull/68377#discussion_r3460392928
##########
task-sdk/src/airflow/sdk/execution_time/comms.py:
##########
@@ -118,6 +122,39 @@
ReceiveMsgType = TypeVar("ReceiveMsgType", bound=BaseModel)
+class DeadlockImminentError(BaseException):
+ """
+ Raised when ``CommsDecoder.send()`` is called from the event loop thread.
+
+ Inherits from :class:`BaseException` rather than :class:`Exception` so that
+ ``contextlib.suppress(Exception)`` — used in
:func:`airflow.sdk.log.mask_secret`
+ and similar helpers — does **not** catch it. This ensures the error always
+ surfaces to the caller, pinpointing the incorrect use of a sync API from an
+ async context (e.g. ``BaseHook.get_hook()`` inside ``aexecute()``).
+
+ Fix: replace ``BaseHook.get_hook()`` with ``await BaseHook.aget_hook()``.
+ """
+
+ def __init__(self, msg: object, *, deadlock_imminent: bool) -> None:
+ import traceback
+
+ detail = (
+ "deadlock is imminent (asend() is concurrently in-flight)"
+ if deadlock_imminent
+ else "deadlock will occur as soon as another coroutine calls
asend()"
+ )
+ stack = "".join(traceback.format_stack())
Review Comment:
Yes — it’s a different stack, and in async deadlock/debug scenarios it’s
often the more useful one, because it tells you where the illegal call
originated, not just where things blew up.
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