hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4712) CPU Usage Metric is not captured properly in YARN-2928
Date Thu, 03 Mar 2016 17:15:18 GMT

    [ https://issues.apache.org/jira/browse/YARN-4712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15178165#comment-15178165
] 

Varun Saxena commented on YARN-4712:
------------------------------------

Yeah even I think we should make minimal changes here i.e. only those required specifically
for YARN-2928. Because this is something which has to be done primarily in trunk.
I will let [~djp] comment on it as he was reviewing YARN-4308 as well.

> CPU Usage Metric is not captured properly in YARN-2928
> ------------------------------------------------------
>
>                 Key: YARN-4712
>                 URL: https://issues.apache.org/jira/browse/YARN-4712
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>              Labels: yarn-2928-1st-milestone
>         Attachments: YARN-4712-YARN-2928.v1.001.patch, YARN-4712-YARN-2928.v1.002.patch,
YARN-4712-YARN-2928.v1.003.patch
>
>
> There are 2 issues with CPU usage collection 
> * I was able to observe that that many times CPU usage got from {{pTree.getCpuUsagePercent()}}
is ResourceCalculatorProcessTree.UNAVAILABLE(i.e. -1) but ContainersMonitor do the calculation
 i.e. {{cpuUsageTotalCoresPercentage = cpuUsagePercentPerCore /resourceCalculatorPlugin.getNumProcessors()}}
because of which UNAVAILABLE check in {{NMTimelinePublisher.reportContainerResourceUsage}}
is not encountered. so proper checks needs to be handled
> * {{EntityColumnPrefix.METRIC}} uses always LongConverter but ContainerMonitor is publishing
decimal values for the CPU usage.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message