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https://issues.apache.org/jira/browse/MAPREDUCE-532?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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rahul k singh updated MAPREDUCE-532:
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Attachment: MAPREDUCE-532-3.patch
adding patch with doc changes and new change which solves the user limit problem
> Option to limit max tasks started per job/queue
> ------------------------------------------------
>
> Key: MAPREDUCE-532
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-532
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Rajiv Chittajallu
> Attachments: MAPREDUCE-532-1.patch, MAPREDUCE-532-2.patch,
> MAPREDUCE-532-3.patch
>
>
> For jobs which call external services, (eg: distcp, crawlers) user/admin
> should be able to control max parallel tasks spawned. There should be a
> mechanism to cap the capacity available for a queue/job.
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