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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6438) Code can be improved in ContainersMonitorImpl.java
Date Wed, 05 Apr 2017 17:23:42 GMT

    [ https://issues.apache.org/jira/browse/YARN-6438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15957278#comment-15957278
] 

Yufei Gu commented on YARN-6438:
--------------------------------

Patch looks good. Only one nit, this comments should be rewrite.
{code}
            // if machine has 6 cores and 3 are used,
            // cpuUsagePercentPerCore should be 300% and
            // cpuUsageTotalCoresPercentage should be 50%
{code}

> Code can be improved in ContainersMonitorImpl.java
> --------------------------------------------------
>
>                 Key: YARN-6438
>                 URL: https://issues.apache.org/jira/browse/YARN-6438
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Miklos Szegedi
>            Assignee: Miklos Szegedi
>            Priority: Minor
>              Labels: newbie
>         Attachments: YARN-6438.000.patch, YARN-6438.001.patch
>
>
> I noticed two code blocks that can be improved in ContainersMonitorImpl.java.  cpuUsagePercentPerCoreByAllContainers
and cpuUsageTotalCoresByAllContainers track the same value and CHANGE_MONITORING_CONTAINER_RESOURCE
is checked twice along with two calls to changeContainerResource.



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