J-HowHuang commented on PR #16455:
URL: https://github.com/apache/pinot/pull/16455#issuecomment-3237617108

   @yashmayya 
   > Also, just to clarify, we shouldn't be retrying the same tenant rebalance 
job anyway right (across controllers as well as on the same controller)?
   
   Right, the mechanics using ZK metadata update prevent this. I wrote that one 
comment in a wrong way.
   
   IMO to schedule them one by one is safer, plus that if multiple tenant 
rebalance jobs are to retry, the one retry per controller protection can 
distribute retries job to different controllers (though some will have to wait 
if the number of jobs > number of controllers), compared to without the one job 
limit, one controller could take up every tenant rebalance jobs to retry 
because we have no leadership in tenant level like tables.


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