potiuk opened a new pull request, #41260:
URL: https://github.com/apache/airflow/pull/41260
When mini-scheduler raises an exception, it has a bit weird side effect -
the task succeeds but it is seen as failed and scheduler gets confused. Also
flower celery worker in this case shows an error.
This happens for example when DAG contains non-serializable tasks.
This PR swallows any exceptions raised in mini-scheduler and simply logs
them as error rather than fail the process. Mini-scheduler is generally
optional and we are also already sometimes skipping it already so occasional
skipping is not a big problem.
Fixes: #39717
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