ashb opened a new pull request, #58147:
URL: https://github.com/apache/airflow/pull/58147
This is a follow up to #57212, which worked fine "at run time" but did not
work in many of our own unit tests, which rely on `dag.test` or `ti.run`.
The way this is implemented is that when we use the InProcessTestSupervisor
we
pre-emptively create a socket pair. We have to create it even it its not
being
used, as we can't know.
And since this is all in one process we create a thread to handle the socket
comms. Since this is only ever for tests performance or hitting the GIL
doesn't matter.
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