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https://issues.apache.org/jira/browse/HADOOP-15337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16410558#comment-16410558
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Jonathan Eagles commented on HADOOP-15337:
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Now I see HADOOP-14600 is related, but only available in 3.1.0
> RawLocalFileSystem file status permissions can avoid shelling out in some
> cases
> -------------------------------------------------------------------------------
>
> Key: HADOOP-15337
> URL: https://issues.apache.org/jira/browse/HADOOP-15337
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Jonathan Eagles
> Assignee: Jonathan Eagles
> Priority: Major
>
> While investigating YARN-8054, it was noticed that getting file permissions
> for RawLocalFileSystem can fail by having too many files open. Upon
> inspection this happens when getting permissions by launching a shell program
> (ls -ld on linux) and parsing the results. With the introduction of java 7
> posix file systems can accurately get file permissions without launching a
> shell program.
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