potiuk commented on issue #17623:
URL: https://github.com/apache/airflow/issues/17623#issuecomment-899091629


   I believe you probably try to re-run the tasks in some ways that are not the 
way airflow is supposed to rerun the task.  Airflow has a `backfill` command to 
be able to re-run the tasks that you want to run "again" (which is exactly the 
case you descibed).
   
   This is pretty basic feature of Airflow, and I would be extremely surprised 
if in this case you get the result from cache of celery. I believe when you 
backfill the tasks via Airflow mechanisms, you will NOT get it from the cache 
of celery as this will be a different task run. 
   
   I have a suspicion that you are somehow trying to manually rerun the tasks 
rather than via backfill. Could you explain how you re-run the tasks in order 
to get into the the problem? 


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