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From "Ravi Gummadi (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3121) NodeManager should handle disk-failures
Date Mon, 21 Nov 2011 11:24:51 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154118#comment-13154118
] 

Ravi Gummadi commented on MAPREDUCE-3121:
-----------------------------------------

>> 5% seems pretty low.
Increased the default percentage to 25%.

>> Can you run the linux-container-executor tests: TestLinuxContainerExecutor and TestContainerManagerWithLCE?
TestLinuxContainerExecutor is passing with the patch. TestContainerManagerWithLCE is failing
in trunk without my patch also. I will raise a JIRA for that.
                
> NodeManager should handle disk-failures
> ---------------------------------------
>
>                 Key: MAPREDUCE-3121
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3121
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, nodemanager
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Ravi Gummadi
>            Priority: Blocker
>             Fix For: 0.23.1
>
>         Attachments: 3121.patch, 3121.v1.1.patch, 3121.v1.patch, 3121.v2.patch, 3121.v3.patch
>
>
> This is akin to MAPREDUCE-2413 but for YARN's NodeManager. We want to minimize the impact
of transient/permanent disk failures on containers. With larger number of disks per node,
the ability to continue to run containers on other disks is crucial.

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