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https://issues.apache.org/jira/browse/AMBARI-15936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248937#comment-15248937
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Aravindan Vijayan commented on AMBARI-15936:
--------------------------------------------
[~cscetbon] That could be the reason. The weird thing is why cpu_idle does not
show up as a valid metric for NodeManagers.
Does the following API response contain cpu_idle ?
http://<Ambari_Server_Host>
:8080/api/v1/stacks/HDP/versions/2.3/services/YARN/artifacts/metrics_descriptor
> Cluster CPU widget is wrong
> ---------------------------
>
> Key: AMBARI-15936
> URL: https://issues.apache.org/jira/browse/AMBARI-15936
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.2.0
> Reporter: Cyril Scetbon
> Assignee: Aravindan Vijayan
> Priority: Minor
> Fix For: 2.4.0
>
>
> I'm using HDP 2.4 to run Yarn applications. When I look at my current
> NodeManagers CPU, the consumption is low. However on Ambari interface, the
> default "Cluster CPU“ widget displays a high CPU (91%). When I check the
> expression used, it uses cpu_idle._sum (see
> http://picpaste.com/Screen_Shot_2016-04-16_at_22.13.43-gS4XsIGb.png) which is
> a metric that I can't find if I try to create a new widget
> http://picpaste.com/Screen_Shot_2016-04-16_at_22.09.56-DJK3v4Wd.png
> Can it be the reason why the CPU consumption displayed is totally wrong ?
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