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Posted to mapreduce-issues@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2011/05/03 15:17:03 UTC
[jira] [Commented] (MAPREDUCE-2457) job submission should inject
group.name (on the JT side)
[ https://issues.apache.org/jira/browse/MAPREDUCE-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028210#comment-13028210 ]
Hudson commented on MAPREDUCE-2457:
-----------------------------------
Integrated in Hadoop-Mapreduce-22-branch #44 (See [https://builds.apache.org/hudson/job/Hadoop-Mapreduce-22-branch/44/])
MAPREDUCE-2457. Job submission should inject group.name on the JobTracker. Contributed by Alejandro Abdelnur.
> 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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