rbalamohan opened a new pull request #1431:
URL: https://github.com/apache/hive/pull/1431


   https://issues.apache.org/jira/browse/HIVE-24061
   
   Changes:
   1. Adjust locality delay when the task is getting scheduled.
   2. Reset locality delay when all nodes in the cluster are busy and wouldn't 
be able to schedule tasks.
   3. Optimize schedulePendingTasks to exit early, when all nodes are busy. 
This helps in reducing lock contention as well.
   
   Patch was tested on a medium scale cluster and observed good improvement in 
runtime of queries.


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