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Posted to yarn-issues@hadoop.apache.org by "Giovanni Matteo Fumarola (JIRA)" <ji...@apache.org> on 2018/06/26 16:10:09 UTC
[jira] [Commented] (YARN-8435) NPE when the same client
simultaneously contact for the first time Yarn Router
[ https://issues.apache.org/jira/browse/YARN-8435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16523919#comment-16523919 ]
Giovanni Matteo Fumarola commented on YARN-8435:
------------------------------------------------
Thanks [~NeoMatrix] for the patch. Everything is good.
Can you add some javadoc for the unit tests?
> 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
>
>
> 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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