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[AIRFLOW-XXXX] fix pools doc for LocalExecutor #7643

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dimberman merged 1 commit into from
Mar 29, 2020
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[AIRFLOW-XXXX] fix pools doc for LocalExecutor #7643

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3 changes: 3 additions & 0 deletions docs/concepts.rst
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Expand Up @@ -554,6 +554,9 @@ reached, runnable tasks get queued and their state will show as such in the
UI. As slots free up, queued tasks start running based on the
``priority_weight`` (of the task and its descendants).

``Pools are not thread-safe , in case of more than one scheduler in localExecutor Mode
you can't ensure the non-scheduling of task even if the pool is full.``

Note that if tasks are not given a pool, they are assigned to a default
pool ``default_pool``. ``default_pool`` is initialized with 128 slots and
can changed through the UI or CLI (though it cannot be removed).
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