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https://issues.apache.org/jira/browse/YARN-7758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16328173#comment-16328173
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Miklos Szegedi commented on YARN-7758:
--------------------------------------

Committed to trunk. Thank you for the contribution [~yufeigu]!

> Add an additional check to the validity of container and application ids 
> passed to container-executor
> -----------------------------------------------------------------------------------------------------
>
>                 Key: YARN-7758
>                 URL: https://issues.apache.org/jira/browse/YARN-7758
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 3.1.0, 2.10.0
>            Reporter: Miklos Szegedi
>            Assignee: Yufei Gu
>            Priority: Major
>         Attachments: YARN-7758.001.patch, YARN-7758.002.patch
>
>
> I would make sure that they contain characters a-z 0-9 and _- (underscore and 
> dash)



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