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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7987) Support setting the run-as user in unsecure mode
Date Tue, 18 Dec 2012 03:44:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534603#comment-13534603
] 

Harsh J commented on HADOOP-7987:
---------------------------------

If secure impersonation covered this need and retained a simple, still-controlled notion of
security that was present before this change even for insecure mode clusters, why did this
need to get added?
                
> Support setting the run-as user in unsecure mode
> ------------------------------------------------
>
>                 Key: HADOOP-7987
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7987
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 1.0.0, 0.23.0, 0.24.0
>            Reporter: Devaraj Das
>            Assignee: Jitendra Nath Pandey
>             Fix For: 1.0.1, 0.23.1, 0.24.0
>
>         Attachments: HADOOP-7987.branch-1.patch, HADOOP-7987.trunk.patch
>
>
> Some applications need to be able to perform actions (such as launch MR jobs) from map
or reduce tasks. In earlier unsecure versions of hadoop (20.x), it was possible to do this
by setting user.name in the configuration. But in 20.205 and 1.0, when running in unsecure
mode, this does not work. (In secure mode, you can do this using the kerberos credentials).

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