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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1298) adding user info to file
Date Tue, 09 Oct 2007 15:59:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533397
] 

Allen Wittenauer commented on HADOOP-1298:
------------------------------------------

> This makes the system quite static. Can we assume, for now at least, that users will
not be 
> created/removed everyday?

No, you cannot... because we *do* actively add users everyday. Requiring a namenode restart
for every user add or delete is totally unacceptable.

> adding user info to file
> ------------------------
>
>                 Key: HADOOP-1298
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1298
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: dfs, fs
>            Reporter: Kurtis Heimerl
>            Assignee: Christophe Taton
>             Fix For: 0.15.0
>
>         Attachments: 1298_2007-09-22_1.patch, 1298_2007-10-04_1.patch, hadoop-user-munncha.patch17
>
>
> I'm working on adding a permissions model to hadoop's DFS. The first step is this change,
which associates user info with files. Following this I'll assoicate permissions info, then
block methods based on that user info, then authorization of the user info. 
> So, right now i've implemented adding user info to files. I'm looking for feedback before
I clean this up and make it offical. 
> I wasn't sure what release, i'm working off trunk. 

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