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https://issues.apache.org/jira/browse/YARN-8193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16535019#comment-16535019
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Jason Lowe commented on YARN-8193:
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bq. The build failed due to some reason not related to the patch:
The problem can be seen in the precommit log:
{noformat}
Switched to branch 'branch-2.9.0'
Your branch is up-to-date with 'origin/branch-2.9.0'.
HEAD is now at 756ebc8 HADOOP-15036. Update LICENSE.txt for HADOOP-14840.
(asuresh)
{noformat}
The patch is targeting branch-2.9.0 which does not have HADOOP-15375 which
fixed the cert error during the build. I will upload the same patch against
branch-2, the next place this should be committed before committing to
branch-2.9, which does have the cert fix. The patch applies cleanly, so it's
the same bits. Hopefully this will result in a useful Jenkins run.
> 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-branch-2-001.patch,
> YARN-8193-branch-2.9.0-001.patch, 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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