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https://issues.apache.org/jira/browse/YARN-5765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15623875#comment-15623875
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Naganarasimha G R commented on YARN-5765:
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I am assuming you are doing again {{stat(npath, &sb) != 0}} after {{if
(mkdir(npath, perm) != 0)}} in the else block before the code block which you
have shared...
We have been using the first approach {{umask(0027)}} in our code base for a
while and i am pretty sure it should work fine, why not try that once ?
As its a blocker i plan to revert the YARN-5287 patch in 2.8, hope we can
conclude on something earlier.
> 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: Haibo Chen
> Priority: Blocker
>
> 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.
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