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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/04/08 11:53:28 UTC

[GitHub] [airflow] thejens commented on issue #13542: Task stuck in "scheduled" or "queued" state, pool has all slots queued, nothing is executing

thejens commented on issue #13542:
URL: https://github.com/apache/airflow/issues/13542#issuecomment-815708831


   We observe the same, I set up a dag that clears these tasks automatically by checking how long they've been queued (though this might sometimes get stuck itself, however that's resolved by restarting the scheduler frequently). 
   
   This also happens to sensors in "up_for_reschedule" by the way. I think it has something to do with a lot of dags/tasks triggering at the same time, we have a lot happening on even hours, and especially at UTC midnight. 


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