keith-turner commented on PR #5726:
URL: https://github.com/apache/accumulo/pull/5726#issuecomment-3075668809

   Ran the two test again tracking average files per tablet.   With 
`compactor.failure.backoff.interval=3s`, seeing much better numbers for average 
file per tablet and and max files per tablet.  Looking at the logs the 
coordinator scans the tservers every 60s by default.  If a bad compactor takes 
a tablets job after that scan, then it will not be found until the next scan by 
the coordinator.  Some tablets would keep getting unlucky and picked up by bad 
compactors after each scan so they would not compact for 3 or 4 minutes even as 
new bulk import files kept rolling in.
   
   I know it would be a change in behavior, but wondering if the default 
settings should make compactors backoff.  Could be slight like 
`compactor.failure.backoff.interval=100ms`.
   
   


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