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

Hi Alan,

If you just want to get this behaviour as a fair scheduler user, the properties can be set in your mapred-site.xml. If you want to submit a patch so that this behaviour is the default, you have to edit mapred-default.xml, which is available in src or perhaps src/java in the mapreduce project.

> 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
>
> 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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