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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7582) Limit the number of default ACL entries to Half of maximum entries (16)
Date Wed, 06 May 2015 03:31:29 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HDFS-7582:
-----------------------------------
    Labels: BB2015-05-TBR  (was: )

> Limit the number of default ACL entries to Half of maximum entries (16)
> -----------------------------------------------------------------------
>
>                 Key: HDFS-7582
>                 URL: https://issues.apache.org/jira/browse/HDFS-7582
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>              Labels: BB2015-05-TBR
>         Attachments: HDFS-7582-001.patch
>
>
> Current ACL limits are only on the total number of entries.
> But there can be a situation where number of default entries for a directory will be
more than half of the maximum entries, i.e. > 16.
> In such case, under this parent directory only files can be created which will have ACLs
inherited using parent's default entries.
> But when directories are created, total number of entries will be more than the maximum
allowed, because sub-directories copies both inherited ACLs as well as default entries.
> Since currently there is no check while copying ACLs from default ACLs directory creation
succeeds, but any modification (only permission on one entry also) on the same ACL will fail.
> So it would be better to restrict the default entries to 16.



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