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https://issues.apache.org/jira/browse/YARN-2618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240515#comment-14240515
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Karthik Kambatla commented on YARN-2618:
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Looks mostly good. One minor comment -
DominantResourceCalculator#getResourceAsValue:
# Add a comment to the tune of "lower the rank, more dominant the resource"
# Also add a check rank > 0 and rank < number of resources, otherwise throw
IllegalArgumentException
> Avoid over-allocation of disk resources
> ---------------------------------------
>
> Key: YARN-2618
> URL: https://issues.apache.org/jira/browse/YARN-2618
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Wei Yan
> Assignee: Wei Yan
> Attachments: YARN-2618-1.patch, YARN-2618-2.patch, YARN-2618-3.patch
>
>
> Subtask of YARN-2139.
> This should include
> - Add API support for introducing disk I/O as the 3rd type resource.
> - NM should report this information to the RM
> - RM should consider this to avoid over-allocation
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