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https://issues.apache.org/jira/browse/YARN-6408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15947650#comment-15947650
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Sunil G commented on YARN-6408:
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I will help to take a look.
It seems we got NPE from here
{{getUser(userName).setUserResourceLimit(userLimitResource);}}.
It seems the user was removed was never added while computeUserLimit was
executing from SLS. Since {{computeUserLimit}} and {{removeUser}} has
writeLock, i suspect that the user was not added.
I ll check the sls part a lil bit more and will share my feedback
> NPE in handling NODE_UPDATE (while running SLS)
> -----------------------------------------------
>
> Key: YARN-6408
> URL: https://issues.apache.org/jira/browse/YARN-6408
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Carlo Curino
> Attachments: YARN-6408.v0.patch
>
>
> The UsersManager.computeUserLimit() throws an NPE during an SLS simulation.
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