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From "Rajiv Chittajallu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5966) Option to limit max tasks started per job/queue
Date Thu, 04 Jun 2009 02:34:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716134#action_12716134

Rajiv Chittajallu commented on HADOOP-5966:

For job limits, Yes. Can we add similar limits per queue?

mapred.max.maps.per.queue and mapred.max.reduces.per.queue

> Option to limit max tasks started per job/queue 
> ------------------------------------------------
>                 Key: HADOOP-5966
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5966
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: contrib/capacity-sched
>            Reporter: Rajiv Chittajallu
> 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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