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https://issues.apache.org/jira/browse/MAPREDUCE-3121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi Gummadi updated MAPREDUCE-3121:
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Attachment: 3121.v1.patch
Attaching new patch incorporating most of the review comments. Will discuss the
remaining minor comments with Vinod soon and upload another patch.
Added a new configuration property for "minimum fraction of number of disks
that are to be healthy for considering a node to be healthy interms of disks".
It is <em>yarn.nodemanager.disk-health-checker.min-healthy-disks</em>. It's
default value is 0.05. i.e. By default, a node is considered unhealthy if there
are only less than 5% of disks are healthy.
> 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
> Fix For: 0.23.1
>
> Attachments: 3121.patch, 3121.v1.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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