[jira] [Commented] (YARN-3105) Add generic state transition metrics to existing framework

["Ray Chiang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-3105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14293915#comment-14293915 ] 

Ray Chiang commented on YARN-3105:
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StateMachineFactory is the base class for the addTransition() methods used by classes like RMContainerImpl and RMAppImpl, among others.  I see the following options for adding a generic metric framework to measure the transition runtimes:

A1) Add argument(s) to addTransition()

A2) Add new method like addTransitionRuntimeMetric()

The arguments needed would need to be enough to find and set the appropriate metric.

Of course, I'm open to other suggestions for how best to implement this feature.

> Add generic state transition metrics to existing framework
> ----------------------------------------------------------
>
>                 Key: YARN-3105
>                 URL: https://issues.apache.org/jira/browse/YARN-3105
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Ray Chiang
>            Assignee: Ray Chiang
>              Labels: metrics, supportability
>
> This issue came up in the discussion of adding a container metric in YARN-2868 (and related YARN-2802).



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