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https://issues.apache.org/jira/browse/YARN-7258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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kartheek muthyala updated YARN-7258:
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Attachment: YARN-7258.002.patch
Thank you [~asuresh] for the comment. I am uploading the next version of the
patch with the changes suggested.
> Add Node and Rack Hints to Opportunistic Scheduler
> --------------------------------------------------
>
> Key: YARN-7258
> URL: https://issues.apache.org/jira/browse/YARN-7258
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Arun Suresh
> Assignee: kartheek muthyala
> Attachments: YARN-7258.001.patch, YARN-7258.002.patch
>
>
> Currently, the Opportunistic Scheduler ignores the node and rack information
> and allocates strictly on the least loaded node (based on queue length) at
> the time it received the request. This JIRA is to track changes needed to
> allow the OpportunisticContainerAllocator to take the node/rack name as hints.
> The flow would be:
> # If requested node found in the top K leastLoaded nodes, allocate on that
> node
> # Else, allocate on least loaded node on the same rack from the top K least
> Loaded nodes.
> # Else, allocate on least loaded node.
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