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https://issues.apache.org/jira/browse/YARN-685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13704102#comment-13704102
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Omkar Vinit Joshi commented on YARN-685:
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I would like to take this up...is there anyway we can reproduce or verify this?
if you have any test /sample code to verify this; it would be really helpful.
> 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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