[GitHub] [druid] acherla commented on issue #13692: Druid Version 0.22.1 - Long Coordinator handoff times

["acherla (via GitHub)" <gi...@apache.org>]

acherla commented on issue #13692:
URL: https://github.com/apache/druid/issues/13692#issuecomment-1465470062

   > cachingCost can help if both run rules (loading - dropping) and balancing are slow. If balancing is significantly slow while run rules are not, segment selection for balancing is likely the culprit. Please try using batched segment sampling in the coordinator dynamic config in that case
   
   Caching cost was configured on the onset, ultimately lowering percentOfSegmentsToConsiderPerMove yielded the best benefit, potentially at the cost of hot spots on the cluster.  
   
   Either way we will be upgrading to 25.0.0 by next week as we've seen the performance significantly improve after some of the new optimizations were pushed in.  


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