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From "Jukka Zitting (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-3040) JMX Stats for the Session
Date Sun, 09 Oct 2011 15:57:29 GMT

    [ https://issues.apache.org/jira/browse/JCR-3040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13123713#comment-13123713
] 

Jukka Zitting commented on JCR-3040:
------------------------------------

The JCR-2936 branch is getting out of date, so I think we should start merging this to trunk.
In revision 1180633 I committed the new o.a.j.core.jmx classes from the latest patch. I didn't
yet commit the integration bits since I think we still have some work to do there. Most notably
I'd rather have the JMX classes depending on other parts of Jackrabbit instead of the other
way around.

Also, to make it easier to collect and expose statistics over a longer period, in revision
1180634 I introduced a simple mechanism for recording a time series using nothing but an AtomicLong
instance as the event counter.
                
> JMX Stats for the Session
> -------------------------
>
>                 Key: JCR-3040
>                 URL: https://issues.apache.org/jira/browse/JCR-3040
>             Project: Jackrabbit Content Repository
>          Issue Type: Sub-task
>          Components: jackrabbit-core
>            Reporter: Alex Parvulescu
>            Assignee: Alex Parvulescu
>         Attachments: JCR-3040-v2.patch, JCR-3040.patch, jr-test.log
>
>
> I've named them Core stats. This will include:
>  - number of sessions currently opened
>  - session read / write operations per second
> The stats refresh once a minute.
> This is disabled by default, so it will not affect performance.

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