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https://issues.apache.org/jira/browse/YARN-8184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16446077#comment-16446077
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Haibo Chen commented on YARN-8184:
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The failed unit tests are unrelated, and I could not reproduce them locally.
+1 on the patch. Will commit it at EOD if no objections.
> Too many metrics if containerLocalizer/ResourceLocalizationService uses
> ReadWriteDiskValidator
> ----------------------------------------------------------------------------------------------
>
> Key: YARN-8184
> URL: https://issues.apache.org/jira/browse/YARN-8184
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Reporter: Yufei Gu
> Assignee: Yufei Gu
> Priority: Major
> Attachments: YARN-8184.001.patch, YARN-8184.002.patch
>
>
> ContainerLocalizer or ResourceLocalizationService will use the
> ReadWriteDiskValidator as its disk validator when it downloads files if we
> configure the yarn.nodemanger.disk-validator to ReadWriteDiskValidator's
> name. In that case, ReadWriteDiskValidator will create a metric item for each
> directory localized, which will be too many metrics. We should let
> ContainerLocalizer only use the basic disk validator.
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