Wangda Tan commented on YARN-2139:

Thanks [~bikassaha] and [~kasha],

+1 for work on a branch, there might be some great amount of changes across all 
the major modules, frequently rebasing might be a issue if this is based on 
And also totally agree about having an abstract policy to wrap disk affinity / 
iops / bandwidth, etc.

> [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_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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