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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3360) Add JMX metrics to TimelineDataManager
Date Mon, 22 Jun 2015 21:51:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14596717#comment-14596717
] 

Jason Lowe commented on YARN-3360:
----------------------------------

The checkstyle comments are complaining about existing method argument lengths or the visibility
of the Metrics fields.  I was replicating the same style used by all other metric fields,
so this is consistent with the code base.

> Add JMX metrics to TimelineDataManager
> --------------------------------------
>
>                 Key: YARN-3360
>                 URL: https://issues.apache.org/jira/browse/YARN-3360
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: timelineserver
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>              Labels: BB2015-05-TBR
>         Attachments: YARN-3360.001.patch, YARN-3360.002.patch, YARN-3360.003.patch
>
>
> The TimelineDataManager currently has no metrics, outside of the standard JVM metrics.
 It would be very useful to at least log basic counts of method calls, time spent in those
calls, and number of entities/events involved.



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