Carlo Curino created YARN-4360:
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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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