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https://issues.apache.org/jira/browse/YARN-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811724#comment-13811724
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Ravi Prakash commented on YARN-90:
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Apart from DirectoryCollection changes, I think we should also update
LocalDirAllocation.AllocatorPerContext. Maybe we should handle that in a
separate JIRA.
Anyway. I noticed that after this patch, although DirectoryCollection recovered
the repaired directories, they were not actually used. I wonder if its
something wrong with my test procedure or we need more changes.
> 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
>
>
> 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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