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https://issues.apache.org/jira/browse/YARN-2888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15283130#comment-15283130
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Arun Suresh commented on YARN-2888:
-----------------------------------
The testcase errors are not related to the patch..
There is no point in fixing the remaining findBugs in the PBImpl classes..
The javac errors don't pertain to this patch
Committing to trunk after I correct the checkstyle error related to adding a
Javadoc for the testcase (of the remaining checkstyle warning, the first one is
not due to this patch.. and the rest don't really warrant a fix).
> 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, YARN-2888.009.patch, YARN-2888.010.patch,
> YARN-2888.011.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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