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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13508) FsPermission string constructor does not recognize sticky bit
Date Tue, 13 Dec 2016 20:21:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wei-Chiu Chuang updated HADOOP-13508:
-------------------------------------
    Attachment: HADOOP-13508.branch-2.patch

Submit branch-2 patch for precommit check.

> FsPermission string constructor does not recognize sticky bit
> -------------------------------------------------------------
>
>                 Key: HADOOP-13508
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13508
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Atul Sikaria
>            Assignee: Atul Sikaria
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HADOOP-13508-1.patch, HADOOP-13508-2.patch, HADOOP-13508.003.patch,
HADOOP-13508.004.patch, HADOOP-13508.005.patch, HADOOP-13508.006.patch, HADOOP-13508.branch-2.patch
>
>
> FsPermissions's string constructor breaks on valid permission strings, like "1777". 
> This is because FsPermission class naïvely uses UmaskParser to do it’s parsing of
permissions: (from source code):
> public FsPermission(String mode) {
>     this((new UmaskParser(mode)).getUMask());
> }
> The mode string UMask accepts is subtly different (esp wrt sticky bit), so parsing Umask
is not the same as parsing FsPermission. 



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