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https://issues.apache.org/jira/browse/YARN-5765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15607003#comment-15607003
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Naganarasimha G R commented on YARN-5765:
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bq. I think doing "perm = perm | S_ISGID" will set the setGID bit regardless of
the original permission,
Agree less riskier option is to go for the option 1 which is {{umask(0027);}}
before calling *mkdir*, but having said that doubt what i have is setGid is
required for only the user's appcache folder or recursively for all its
children ? if recursively done is there any folder which we create do not
require this ?
In between, do we need to raise a new jira for 3.0.0-alpha2 so that release
notes gets added in specific which is not required for 2.8 and 2.9 ?
> 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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