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https://issues.apache.org/jira/browse/YARN-6408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15947652#comment-15947652
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Carlo Curino commented on YARN-6408:
------------------------------------
It looks like the userName was probably removed (last app for this user) and
then we tried to update a missing entry:
{color:red}
getUser(userName).setUserResourceLimit(userLimitResource);
return userLimitResource;
{color}
I put a simple null-check, though I would like someone to validate it, as I am
not sure that is enough: [~wangda], [~jianhe], [~asuresh], thoughts?
> 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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