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Date: Thu, 5 Nov 2009 18:40:32 +0000 (UTC)
From: "Matei Zaharia (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-707) Provide a jobconf property for
 explicitly assigning a job to a pool
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12774023#action_12774023 ] 

Matei Zaharia commented on MAPREDUCE-707:
-----------------------------------------

The test failure seems to be due to Hudson being flaky, because the test passes on my laptop too. Therefore I've committed the patch. Thanks Alan!

> Provide a jobconf property for explicitly assigning a job to a pool
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-707
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-707
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: contrib/fair-share
>            Reporter: Matei Zaharia
>            Priority: Trivial
>         Attachments: MAPREDUCE-707-1-apache.patch, MAPREDUCE-707-2-apache.patch, MAPREDUCE-707-apache.patch
>
>
> A common use case of the fair scheduler is to have one pool per user, but then to define some special pools for various production jobs, import jobs, etc. Therefore, it would be nice if jobs went by default to the pool of the user who submitted them, but there was a setting to explicitly place a job in another pool. Today, this can be achieved through a sort of trick in the JobConf:
> {code}
> <property>
>   <name>mapred.fairscheduler.poolnameproperty</name>
>   <value>pool.name</value>
> </property>
> <property>
>   <name>pool.name</name>
>   <value>${user.name}</value>
> </property>
> {code}
> This JIRA proposes to add a property called mapred.fairscheduler.pool that allows a job to be placed directly into a pool, avoiding the need for this trick.

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