tianjuan created YARN-8471:
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Summary: YARN throw NullPointerException at
RegularContainerAllocator
Key: YARN-8471
URL: https://issues.apache.org/jira/browse/YARN-8471
Project: Hadoop YARN
Issue Type: Bug
Components: yarn
Reporter: tianjuan
Fix For: 2.9.0
at some point RM just hangs and stops allocating resources. At the point RM get
hangs, YARN throw NullPointerException at RegularContainerAllocator#allocate,
and RegularContainerAllocator#preCheckForPlacementSet, and
RegularContainerAllocator#getLocalityWaitFactor
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