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https://issues.apache.org/jira/browse/YARN-8193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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tianjuan reassigned YARN-8193:
------------------------------
Assignee: Zian Chen (was: tianjuan)
> YARN RM hangs abruptly (stops allocating resources) when running successive
> applications.
> -----------------------------------------------------------------------------------------
>
> Key: YARN-8193
> URL: https://issues.apache.org/jira/browse/YARN-8193
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Zian Chen
> Assignee: Zian Chen
> Priority: Critical
> Fix For: 3.2.0, 3.1.1
>
> Attachments: YARN-8193.001.patch, YARN-8193.002.patch
>
>
> When running massive queries successively, at some point RM just hangs and
> stops allocating resources. At the point RM get hangs, YARN throw
> NullPointerException at RegularContainerAllocator.getLocalityWaitFactor.
> There's sufficient space given to yarn.nodemanager.local-dirs (not a node
> health issue, RM didn't report any node being unhealthy). There is no fixed
> trigger for this (query or operation).
> This problem goes away on restarting ResourceManager. No NM restart is
> required.
>
>
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