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https://issues.apache.org/jira/browse/HDFS-6463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14012144#comment-14012144
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Aaron T. Myers commented on HDFS-6463:
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Gotcha, all makes sense. Thanks a lot for the very lucid explanation, Chris.
One suggestion - should we perhaps use this JIRA to improve the comment for
{{AclStorage#createFsPermissionForExtendedAcl}} to make it clear that there is
no bug here? Empirically, it's not entirely obvious given that it took me by
surprise. :)
> Incorrect permission can be created after setting ACLs
> ------------------------------------------------------
>
> Key: HDFS-6463
> URL: https://issues.apache.org/jira/browse/HDFS-6463
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.4.0
> Reporter: Aaron T. Myers
> Attachments: HDFS-6463.patch
>
>
> When setting ACLs for a file or directory, it's possible for the resulting
> FsPermission object's group entry to be set incorrectly, in particular it
> will be set to the mask entry. More details in the first comment of this JIRA.
> Thanks to [~szehon] for identifying this issue.
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