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Posted to yarn-issues@hadoop.apache.org by "Swapnil Daingade (JIRA)" <ji...@apache.org> on 2015/01/15 01:27:36 UTC

[jira] [Commented] (YARN-2139) [Umbrella] Support for Disk as a Resource in YARN

    [ https://issues.apache.org/jira/browse/YARN-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14277969#comment-14277969 ] 

Swapnil Daingade commented on YARN-2139:
----------------------------------------

Had a look at the latest design doc and was wondering if it would be possible to make the isolation part separate and optional from the avoiding over-allocation part. Enforcing isolation using Cgroups may not always work, especially in cases where HDFS is not the default dfs.



> [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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