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From "Ravi Prakash (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-90) NodeManager should identify failed disks becoming good back again
Date Tue, 06 Aug 2013 15:05:49 GMT

    [ https://issues.apache.org/jira/browse/YARN-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13730850#comment-13730850
] 

Ravi Prakash commented on YARN-90:
----------------------------------

Do we know what we need to do for this JIRA? I can see in DirectoryCollection, we need to
be able to remove from failedDirs, and be able to recognize this fact in LocalDirsHandler
service. Would anything else need to be done?
                
> 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
>
> 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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