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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4360) Improve GreedyReservationAgent to support "early" allocations, and performance improvements
Date Tue, 17 Nov 2015 02:48:11 GMT
Carlo Curino created YARN-4360:
----------------------------------

             Summary: Improve GreedyReservationAgent to support "early" allocations, and performance
improvements 
                 Key: YARN-4360
                 URL: https://issues.apache.org/jira/browse/YARN-4360
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Carlo Curino


The GreedyReservationAgent allocates "as late as possible". Per various conversations, it
seems useful to have a mirror behavior that allocates as early as possible. Also in the process
we leverage improvements from YARN-4358, and implement an RLE-aware StageAllocatorGreedy(RLE),
which significantly speeds up allocation.



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