potiuk opened a new pull request, #40894:
URL: https://github.com/apache/airflow/pull/40894
With this PR, it is possible to get a working "DB isolation" working
solution with celery executor. From my tests it works comparably fast to the
non-DB isolation executor.
Things changed here:
* remove "schedule_downstream_tasks" endpoint. It is currently not possible
to get it as DAG object is removed during serialization and this is where this
method calculates which tasks to schedule
* when we are forcing DB access in DB isolation mode, we print log message
that we are switching to using DB for appropriate components. We also make sure
to remove DB configuration just in case it is set (this allows to run tests in
breeze environment with more certainty)
* the detection whether to force direct DB access is made in _main - this
way regular commands run in breeze (migrate/user etc. can use the DB while
intializing the environment and actions can be logged to DB or via RPC calls.
* improved diagnostics
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