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https://issues.apache.org/jira/browse/YARN-2618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14239083#comment-14239083
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Varun Vasudev commented on YARN-2618:
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[~kasha], [~ywskycn] - question on "vdisks". What is the expected difference
between a container with 1 vdisk and one with 2 vdisks? Is it that the second
gets a higher proportion of disk operations or is it meant to imply a greater
number of spindles? Sorry if the question seems very basic - I've gone through
the parent ticket but I'd like to understand the term independent of the
enforcement mechanism.
> 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
>
>
> 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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