[jira] [Commented] (HADOOP-7987) Support setting the run-as user in unsecure mode

["Todd Lipcon (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-7987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13190106#comment-13190106 ] 

Todd Lipcon commented on HADOOP-7987:
-------------------------------------

I had started a thread on this same topic in September '10, where Owen vetoed the idea. See "hadoop.job.ugi backwards compatibility":
http://markmail.org/thread/irzcppjxy35hwybj
and http://markmail.org/message/qegxf3yeq74an5hq

Would be interesting to see if his opinion has changed.
                
> 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
>            Reporter: Devaraj Das
>             Fix For: 1.1.0
>
>
> 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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