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https://issues.apache.org/jira/browse/HDFS-4919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13688546#comment-13688546
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Colin Patrick McCabe commented on HDFS-4919:
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Do we still need this flag in hadoop-2 and beyond? The documentation implies
that part of having it was to "allow administrators to reliably set owners and
permissions in advance of turning on regular permissions checking." Surely
everyone who needed to do this conversion process has already done so since
hadoop 0.22. I don't know of anyone who would use this flag nowadays, even
developers.
> Improve documentation of dfs.permissions.enabled flag.
> ------------------------------------------------------
>
> Key: HDFS-4919
> URL: https://issues.apache.org/jira/browse/HDFS-4919
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 3.0.0, 2.1.0-beta
> Reporter: Chris Nauroth
>
> The description of dfs.permissions.enabled in hdfs-default.xml does not state
> that permissions are always checked on certain calls regardless of this
> configuration. The HDFS permissions guide still mentions the deprecated
> dfs.permissions property instead of the currently supported
> dfs.permissions.enabled.
> http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html#Configuration_Parameters
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