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https://issues.apache.org/jira/browse/YARN-10763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17342360#comment-17342360
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Peter Bacsko commented on YARN-10763:
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[~chaosju] some comments:
1. {{Timer}} / {{TimerTask}} are rather old constructs, I'd prefer
{{ScheduledThreadPoolExecutor}}.
2. Another problem is that the {{Timer}} is not stopped in {{destroy()}}, this
can definitely be a problem in the tests.
3. This is a singleton class, so the constructor should not be public, so
remove the modifier.
> add the speed of containers assigned metrics to ClusterMetrics
> ---------------------------------------------------------------
>
> Key: YARN-10763
> URL: https://issues.apache.org/jira/browse/YARN-10763
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 3.2.1
> Reporter: chaosju
> Priority: Major
> Attachments: YARN-10763.001.patch, screenshot-1.png
>
>
> It'd be good to have ContainerAssignedNum/Second in ClusterMetrics for
> measuring cluster throughput.
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