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https://issues.apache.org/jira/browse/YARN-685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wangda Tan resolved YARN-685.
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Resolution: Invalid
According to test result from [~raviprak], CS fairly distributes reducers to
NMs in the cluster. Resolving this as invalid and please reopen this if you
still think this is a problem.
> Capacity Scheduler is not distributing the reducers tasks across the cluster
> ----------------------------------------------------------------------------
>
> Key: YARN-685
> URL: https://issues.apache.org/jira/browse/YARN-685
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.0.4-alpha
> Reporter: Devaraj K
>
> If we have reducers whose total memory required to complete is less than the
> total cluster memory, it is not assigning the reducers to all the nodes
> uniformly(~uniformly). Also at that time there are no other jobs or job tasks
> running in the cluster.
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