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From "Varun Vasudev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5765) LinuxContainerExecutor creates appcache and its subdirectories with wrong group owner.
Date Mon, 14 Nov 2016 03:59:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15662684#comment-15662684
] 

Varun Vasudev commented on YARN-5765:
-------------------------------------

[~naganarasimha_gr@apache.org] - can you please revert YARN-5287 on trunk and branch-2 as
well? There's no reason to diverge 2.8, plus it's currently blocking the 3.0 alpha 2 release
and it's a pain for developers who are developing on branch-2.

> LinuxContainerExecutor creates appcache and its subdirectories with wrong group owner.
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-5765
>                 URL: https://issues.apache.org/jira/browse/YARN-5765
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.8.0, 3.0.0-alpha1
>            Reporter: Haibo Chen
>            Assignee: Naganarasimha G R
>            Priority: Blocker
>         Attachments: YARN-5765.001.patch
>
>
> LinuxContainerExecutor creates usercache/\{userId\}/appcache/\{appId\} with wrong group
owner, causing Log aggregation and ShuffleHandler to fail because node manager process does
not have permission to read the files under the directory.
> This can be easily reproduced by enabling LCE and submitting a MR example job as a user
that does not belong to the same group that NM process belongs to. 



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