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https://issues.apache.org/jira/browse/YARN-2730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Lowe updated YARN-2730:
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Summary: DefaultContainerExecutor runs only one localizer at a time (was:
Only one localizer can run on a NodeManager at a time)
+1 for the latest patch, committing this.
> DefaultContainerExecutor runs only one localizer at a time
> ----------------------------------------------------------
>
> Key: YARN-2730
> URL: https://issues.apache.org/jira/browse/YARN-2730
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.4.0
> Reporter: Siqi Li
> Assignee: Siqi Li
> Priority: Critical
> Attachments: YARN-2730.v1.patch, YARN-2730.v2.patch,
> YARN-2730.v3.patch
>
>
> We are seeing that when one of the localizerRunner stuck, the rest of the
> localizerRunners are blocked. We should remove the synchronized modifier.
> The synchronized modifier appears to have been added by
> https://issues.apache.org/jira/browse/MAPREDUCE-3537
> It could be removed if Localizer doesn't depend on current directory
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