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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2022/02/06 15:11:00 UTC

[GitHub] [airflow] potiuk edited a comment on issue #16982: Tasks fail and do not log due to backend DB (dead?)lock

potiuk edited a comment on issue #16982:
URL: https://github.com/apache/airflow/issues/16982#issuecomment-1030849529


   > I experience the same problem. In the workers logs from last night I can see few dozen errors caused by deadlock. In the scheduler log I can see only one deadlock error, after which scheduler was restarted. Here is a gist containing the logs: https://gist.github.com/tulanowski/fcc8358bad3c8e5d15678639ec015d8b
   > 
   > Airflow version 2.2.0 MySQL 5.7.33 running on AWS RDS Celery executor with 6 workers 1 scheduler replica
   > 
   > Hope it helps!
   
   If I am not mistaken, it did :). 
   
   The (very likely IMHO) fix is in #21362. Question @tulanowski  - > would it be possible that you patch your Airflow instance with the fix (it's really simple) and see if it helps? 
   
   Also - just to confirm - you happen to have some tasks that throw AirflowRescheduleException ? Because IMHO this is when it could happen.


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