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https://issues.apache.org/jira/browse/YARN-5111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15292416#comment-15292416
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Li Lu commented on YARN-5111:
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Here I think I forgot one thing which could be the cause. I forgot to send the
final aggregation data when we shut down the collector. So, for jobs running
less than a few seconds, it is quite possible that the first aggregation call
fails due to the NPE introduced in YARN-5018, and the second call is not yet
there. We should enforce an update at the end of the
AppLevelTimelineCollector's life cycle to get all required data.
> YARN container system metrics are not aggregated to application
> ---------------------------------------------------------------
>
> Key: YARN-5111
> URL: https://issues.apache.org/jira/browse/YARN-5111
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Sangjin Lee
> Assignee: Naganarasimha G R
> Priority: Critical
> Labels: yarn-2928-1st-milestone
>
> It appears that the container system metrics (CPU and memory) are not being
> aggregated onto the application.
> I definitely see container system metrics when I query for YARN_CONTAINER.
> However, there is no corresponding metrics on the parent application.
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