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From "Hou Song (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-90) NodeManager should identify failed disks becoming good back again
Date Wed, 06 Nov 2013 02:50:19 GMT

     [ https://issues.apache.org/jira/browse/YARN-90?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hou Song updated YARN-90:
-------------------------

    Attachment: YARN-90.patch

Now I understand, thanks. 
Please review this patch first, and will open a new jira for the information exporsure soon.


> 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
>         Attachments: YARN-90.1.patch, YARN-90.patch, YARN-90.patch, YARN-90.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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