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https://issues.apache.org/jira/browse/HDFS-6664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14057810#comment-14057810
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Chris Nauroth commented on HDFS-6664:
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http://hadoop.apache.org/docs/r2.4.1/hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html#Group_Mapping
> HDFS permissions guide documentation states incorrect default group mapping
> class.
> ----------------------------------------------------------------------------------
>
> Key: HDFS-6664
> URL: https://issues.apache.org/jira/browse/HDFS-6664
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Affects Versions: 3.0.0, 2.5.0
> Reporter: Chris Nauroth
> Priority: Trivial
> Labels: newbie
>
> The HDFS permissions guide states that our default group mapping class is
> {{org.apache.hadoop.security.ShellBasedUnixGroupsMapping}}. This is no
> longer true. The default has been changed to
> {{org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback}}.
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