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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14843) FsPermission symbolic parsing failed to detect invalid argument
Date Thu, 07 Sep 2017 17:07:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16157244#comment-16157244
] 

Andrew Wang commented on HADOOP-14843:
--------------------------------------

Should we add unit testing for these cases then, as documentation?

> FsPermission symbolic parsing failed to detect invalid argument
> ---------------------------------------------------------------
>
>                 Key: HADOOP-14843
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14843
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 2.7.4, 2.8.1
>            Reporter: Jason Lowe
>            Assignee: Bharat Viswanadham
>         Attachments: HADOOP-14843.patch
>
>
> A user misunderstood the syntax format for the FsPermission symbolic constructor and
passed the argument "-rwr" instead of "u=rw,g=r".  In 2.7 and earlier this was silently misinterpreted
as mode 0777 and in 2.8 it oddly became mode 0000.  In either case FsPermission should have
flagged "-rwr" as an invalid argument rather than silently misinterpreting it.



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