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https://issues.apache.org/jira/browse/YARN-8435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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rangjiaheng updated YARN-8435:
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Attachment: YARN-8435.v7.patch
> NPE when the same client simultaneously contact for the first time Yarn Router
> ------------------------------------------------------------------------------
>
> Key: YARN-8435
> URL: https://issues.apache.org/jira/browse/YARN-8435
> Project: Hadoop YARN
> Issue Type: Bug
> Components: router
> Affects Versions: 2.9.0, 3.0.2
> Reporter: rangjiaheng
> Priority: Critical
> Attachments: YARN-8435.v1.patch, YARN-8435.v2.patch,
> YARN-8435.v3.patch, YARN-8435.v4.patch, YARN-8435.v5.patch,
> YARN-8435.v6.patch, YARN-8435.v7.patch
>
>
> When Two client process (with the same user name and the same hostname) begin
> to connect to yarn router at the same time, to submit application, kill
> application, ... and so on, then a java.lang.NullPointerException may throws
> from yarn router.
>
>
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