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Posted to common-issues@hadoop.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2016/12/13 20:21:58 UTC
[jira] [Reopened] (HADOOP-13508) FsPermission string constructor
does not recognize sticky bit
[ https://issues.apache.org/jira/browse/HADOOP-13508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang reopened HADOOP-13508:
--------------------------------------
I am reopening this issue to backport the fix to branch-2.
Please shout out if you think this is incompatible change (e.g. downstream applications that depends on existing semantics). Thanks.
> 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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