potiuk opened a new pull request, #32341:
URL: https://github.com/apache/airflow/pull/32341

   This is a follow-up on #18616 where we introduced retries on the occassional 
deadlocks when rendered task fields have been deleted by parallel threads (this 
is not a real deadlock, it's because MySQL locks too many things when queries 
are executed and will deadlock when one of those queries wait too much).
   
   Adding retry - while not perfect - should allow to handle the problem and 
significantly decrease the likelihood of such deadlocks.
   
   We can probably think about different approach for rendered fields, but for 
now retrying is - I think - acceptable short-term fix.
   
   Fixes: #32294
   Fixes: #29687
   
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