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https://issues.apache.org/jira/browse/HIVE-1818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12989812#comment-12989812
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Sushanth Sowmyan commented on HIVE-1818:
----------------------------------------

Hi,

Thanks for the review, I updated the diff on reviewboard (again, not sure 
whether you got a notification from reviewboard, or whether I should update 
that diff here too) to reflect your comments/feedback.



> Call frequency and duration metrics for HiveMetaStore via jmx
> -------------------------------------------------------------
>
>                 Key: HIVE-1818
>                 URL: https://issues.apache.org/jira/browse/HIVE-1818
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore
>            Reporter: Sushanth Sowmyan
>            Assignee: Sushanth Sowmyan
>            Priority: Minor
>             Fix For: 0.7.0
>
>         Attachments: HIVE-1818-vs-1054860.patch, HIVE-1818-vs-1063088.patch, 
> HIVE-1818.patch
>
>
> As recently brought up in the hive-dev mailing list, it'd be useful if the 
> HiveMetaStore had some sort of instrumentation capability so as to measure 
> frequency of calls to various calls on the HiveMetaStore and the duration of 
> time spent in these calls. 
> There are already incrementCounter() and logStartFunction() / 
> logStartTableFunction() ,etc calls in HiveMetaStore, and they could be 
> refactored/repurposed to make calls that expose JMX MBeans as well. Or, a 
> Metrics subsystem could be introduced which made calls to 
> incrementCounter()/etc as a refactor.
> It might also be possible to specify a -D parameter that the Metrics 
> subsystem could use to determine whether or not to be enabled, and if so, on 
> to what port. And once we have the capability to instrument and expose 
> MBeans, it might also be possible for other subsystems to also adopt and use 
> this system.

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