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https://issues.apache.org/jira/browse/YARN-5765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15670120#comment-15670120
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Naganarasimha G R commented on YARN-5765:
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Thanks for identifying the issue [~haibochen] and reviews from [~haibochen],
[[email protected]] & [~vvasudev].
Will put the patch some of the commnts from here to the parent jira !
> Revert CHMOD on the new dirs created-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
>
>
> Earlier fix for YARN-5287 has been reverted due to this issue :
> 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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