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From "Ahmed Radwan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2836) Provide option to fail jobs when submitted to non-existent pools.
Date Fri, 02 Sep 2011 02:08:09 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ahmed Radwan updated MAPREDUCE-2836:
------------------------------------

    Attachment: MAPREDUCE-2836_rev4.patch

Many thanks Todd for your comments!

I have updated the patch.

I have addressed your comments in the updated patch (attached). Regarding the getPool() methods,
I agree it's a little confusing, but for compatibility I didn't want to change the signature
of this public method. Based on your comment, I have modified the java docs for both methods
to make their functionality clearer and avoid any confusion.

> Provide option to fail jobs when submitted to non-existent pools.
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-2836
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2836
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/fair-share
>            Reporter: Jeff Bean
>            Assignee: Ahmed Radwan
>            Priority: Minor
>         Attachments: MAPREDUCE-2836.patch, MAPREDUCE-2836_rev2.patch, MAPREDUCE-2836_rev3.patch,
MAPREDUCE-2836_rev4.patch
>
>
> In some environments, it might be desirable to explicitly specify the fair scheduler
pools and to explicitly fail jobs that are not submitted to any of the pools. 
> Current behavior of the fair scheduler is to submit jobs to a default pool if a pool
name isn't specified or to create a pool with the new name if the pool name doesn't already
exist. There should be a configuration option for the fair scheduler that causes it to noisily
fail the job if it's submitted to a pool that isn't pre-specified or if the specified pool
doesn't exist.

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