[jira] Commented: (HADOOP-3953) Sticky bit for directories

["Hemanth Yamijala (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-3953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12622766#action_12622766 ] 

Hemanth Yamijala commented on HADOOP-3953:
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+1. When working on HOD, it seemed like this would be very useful in some cases where we wanted shared space for all users.

> Sticky bit for directories
> --------------------------
>
>                 Key: HADOOP-3953
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3953
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Koji Noguchi
>
> Our users (especially Pig) heavily use /tmp for temporary storage. 
> Permission are set to 777.
> However, this means any users can rename and also remove (by moving to .Trash) other users directories and files.
> It would be nice if we can have a sticky bit like unix. 
> Copy&Pasted from manpage.
> STICKY DIRECTORIES
>        When  the  sticky  bit  is set on a directory, files in that directory may be unlinked or renamed only by
>        root or their owner.  Without the sticky bit, anyone able to write to the directory can delete or  rename
>        files.  The sticky bit is commonly found on directories, such as /tmp, that are world-writable.

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