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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2888) Corrective mechanisms for rebalancing NM container queues
Date Thu, 12 May 2016 15:34:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-2888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281617#comment-15281617
] 

Arun Suresh commented on YARN-2888:
-----------------------------------

Thanks for the reviews [~kkaranasos].. [~curino], can you please bless with a binding +1 if
you are ok with the patch ?

> Corrective mechanisms for rebalancing NM container queues
> ---------------------------------------------------------
>
>                 Key: YARN-2888
>                 URL: https://issues.apache.org/jira/browse/YARN-2888
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Konstantinos Karanasos
>            Assignee: Arun Suresh
>         Attachments: YARN-2888-yarn-2877.001.patch, YARN-2888-yarn-2877.002.patch, YARN-2888.003.patch,
YARN-2888.004.patch, YARN-2888.005.patch, YARN-2888.006.patch, YARN-2888.007.patch, YARN-2888.008.patch
>
>
> Bad queuing decisions by the LocalRMs (e.g., due to the distributed nature of the scheduling
decisions or due to having a stale image of the system) may lead to an imbalance in the waiting
times of the NM container queues. This can in turn have an impact in job execution times and
cluster utilization.
> To this end, we introduce corrective mechanisms that may remove (whenever needed) container
requests from overloaded queues, adding them to less-loaded ones.



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