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From "Ming Ma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-90) NodeManager should identify failed disks becoming good back again
Date Fri, 17 Oct 2014 15:48:36 GMT

    [ https://issues.apache.org/jira/browse/YARN-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175175#comment-14175175
] 

Ming Ma commented on YARN-90:
-----------------------------

Thanks Varun.The latest patch LGTM.

> NodeManager should identify failed disks becoming good back again
> -----------------------------------------------------------------
>
>                 Key: YARN-90
>                 URL: https://issues.apache.org/jira/browse/YARN-90
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Ravi Gummadi
>            Assignee: Varun Vasudev
>         Attachments: YARN-90.1.patch, YARN-90.patch, YARN-90.patch, YARN-90.patch, YARN-90.patch,
apache-yarn-90.0.patch, apache-yarn-90.1.patch, apache-yarn-90.10.patch, apache-yarn-90.2.patch,
apache-yarn-90.3.patch, apache-yarn-90.4.patch, apache-yarn-90.5.patch, apache-yarn-90.6.patch,
apache-yarn-90.7.patch, apache-yarn-90.8.patch, apache-yarn-90.9.patch
>
>
> MAPREDUCE-3121 makes NodeManager identify disk failures. But once a disk goes down, it
is marked as failed forever. To reuse that disk (after it becomes good), NodeManager needs
restart. This JIRA is to improve NodeManager to reuse good disks(which could be bad some time
back).



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