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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-6862) Nodemanager resource usage metrics sometimes are negative
Date Mon, 24 Jul 2017 14:25:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-6862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jason Lowe updated YARN-6862:
             Summary: Nodemanager resource usage metrics sometimes are negative  (was: There
is a bug in computing resource usage in NM.)
    Target Version/s: 2.8.2
       Fix Version/s:     (was: 2.8.2)

I updated the summary to be something more specific.  Also please do not set the Fix version
field, as that should only be set once a patch is committed to one or more branches.  The
Target Version is intended to track the intended version(s) for the fix.

> Nodemanager resource usage metrics sometimes are negative
> ---------------------------------------------------------
>                 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
> 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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