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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6862) There is a bug in computing resource usage in NM.
Date Mon, 24 Jul 2017 11:58:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16098249#comment-16098249
] 

Sunil G commented on YARN-6862:
-------------------------------

[~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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