[jira] [Assigned] (YARN-6862) Nodemanager resource usage metrics sometimes are negative

["Benjamin Teke (Jira)" <ji...@apache.org>]

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

Benjamin Teke reassigned YARN-6862:
-----------------------------------

    Assignee: Benjamin Teke  (was: YunFan Zhou)

> 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
>            Assignee: Benjamin Teke
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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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