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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1781) NM should allow users to specify max disk utilization for local disks
Date Fri, 07 Mar 2014 18:57:45 GMT

    [ https://issues.apache.org/jira/browse/YARN-1781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924207#comment-13924207
] 

Vinod Kumar Vavilapalli commented on YARN-1781:
-----------------------------------------------

Ah, one thing that I missed. We need to document the new properties in yarn-default.xml.

Given we will have one more iteration, can you make the prefix constant in YarnConfiguration
private? That doesn't need to be public.

> NM should allow users to specify max disk utilization for local disks
> ---------------------------------------------------------------------
>
>                 Key: YARN-1781
>                 URL: https://issues.apache.org/jira/browse/YARN-1781
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>         Attachments: apache-yarn-1781.0.patch, apache-yarn-1781.1.patch, apache-yarn-1781.2.patch,
apache-yarn-1781.3.patch
>
>
> This is related to YARN-257(it's probably a sub task?). Currently, the NM does not detect
full disks and allows full disks to be used by containers leading to repeated failures. YARN-257
deals with graceful handling of full disks. This ticket is only about detection of full disks
by the disk health checkers.
> The NM should allow users to set a maximum disk utilization for local disks and mark
disks as bad once they exceed that utilization. At the very least, the NM should at least
detect full disks.



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