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https://issues.apache.org/jira/browse/YARN-6862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16098249#comment-16098249
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Sunil G commented on YARN-6862:
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[~daemon] Thanks for raising the jira.
Could you please share some more information regarding cluster and logs if any
(NM logs).
> There is a bug in computing resource usage in NM.
> -------------------------------------------------
>
> Key: YARN-6862
> URL: https://issues.apache.org/jira/browse/YARN-6862
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 2.8.2
> Reporter: YunFan Zhou
> Fix For: 2.8.2
>
>
> When we collect real-time metrics of resource usage in NM, we found those
> values sometimes are invalid.
> For example, the following are values when collected at some point:
> "milliVcoresUsed":-5808,
> "currentPmemUsage":-1,
> "currentVmemUsage":-1,
> "cpuUsagePercentPerCore":-968.1026
> "cpuUsageTotalCoresPercentage":-24.202564,
> "pmemLimit":2147483648,
> "vmemLimit":4509715456
> There are many negative values, there may a bug in NM.
> We should fix it, because the real-time metrics of NM is pretty important for
> us sometimes.
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