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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2457) job submission should inject group.name (on the JT side)
Date Wed, 04 May 2011 14:58:06 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028777#comment-13028777
] 

Hudson commented on MAPREDUCE-2457:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk #669 (See [https://builds.apache.org/hudson/job/Hadoop-Mapreduce-trunk/669/])
    

> job submission should inject group.name (on the JT side)
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-2457
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2457
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>            Priority: Critical
>             Fix For: 0.22.0
>
>         Attachments: MAPREDUCE-2457-1.patch, MAPREDUCE-2457.patch
>
>
> Until Hadoop 0.20, the JobClient was injecting the property 'group.name' on the JobConf
submitted to the JobTracker.
> Since Hadoop 0.21, due to security related changes, this is not done anymore.
> This breaks backwards compatibility for jobs/components that expect the 'group.name'
to be automatically set at submission time.
> An example of a component being affected by this change is the FairScheduler where it
is common to use the group.name as pool name. Different from other properties, a special characteristic
of the group.name is that its value cannot be tampered by a user.
> For security reasons this should not be done (as it was done before) in the JobClient
side. Instead, it should be done in the JobTracker when the JobConf is received.

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