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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5899) Add configuration flag to disable/enable support for ACLs.
Date Sat, 08 Feb 2014 09:24:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895491#comment-13895491
] 

Tsz Wo (Nicholas), SZE commented on HDFS-5899:
----------------------------------------------

> ... because the AclStorage methods only get called while holding the namesystem write
lock. ...

This is a very good point.  Please feel free to commit the patch.  We may think about how
to improve the code later on.

> Add configuration flag to disable/enable support for ACLs.
> ----------------------------------------------------------
>
>                 Key: HDFS-5899
>                 URL: https://issues.apache.org/jira/browse/HDFS-5899
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: HDFS ACLs (HDFS-4685)
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-5899.1.patch, HDFS-5899.2.patch
>
>
> Add a new configuration property that allows administrators to toggle support for HDFS
ACLs on/off.  By default, the flag will be off.  This is a conservative choice, and administrators
interested in using ACLs can enable it explicitly.



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