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https://issues.apache.org/jira/browse/YARN-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14232133#comment-14232133
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Bikas Saha commented on YARN-2139:
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Thanks for the update.
Its not clear to me how we are going to clearly de-couple 1) and 2) from 3).
From first thoughts, scheduling is what prevents over-allocation and the NM
enforces the scheduling decision.
Could you please throw some light on that?
> [Umbrella] Support for Disk as a Resource in YARN
> --------------------------------------------------
>
> Key: YARN-2139
> URL: https://issues.apache.org/jira/browse/YARN-2139
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Wei Yan
> Attachments: Disk_IO_Isolation_Scheduling_3.pdf,
> Disk_IO_Scheduling_Design_1.pdf, Disk_IO_Scheduling_Design_2.pdf,
> YARN-2139-prototype-2.patch, YARN-2139-prototype.patch
>
>
> YARN should consider disk as another resource for (1) scheduling tasks on
> nodes, (2) isolation at runtime, (3) spindle locality.
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