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https://issues.apache.org/jira/browse/YARN-5529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15796064#comment-15796064
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Robert Kanter commented on YARN-5529:
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+1 LGTM
> Create new DiskValidator class with metrics
> -------------------------------------------
>
> Key: YARN-5529
> URL: https://issues.apache.org/jira/browse/YARN-5529
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager
> Reporter: Ray Chiang
> Assignee: Yufei Gu
> Labels: supportability
> Attachments: YARN-5529.001.patch, YARN-5529.002.patch,
> YARN-5529.003.patch
>
>
> With really large clusters, the basic DiskValidator isn't sufficient for some
> of the less common types of disk failures.
> Look at a new DiskValidator that could do one or more of the following:
> - Add new tests to find more problems
> - Add new metrics to at least characterize problems that we haven't predicted
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