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From "Jukka Zitting (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-3040) JMX Stats for the Session
Date Thu, 18 Aug 2011 09:07:27 GMT

    [ https://issues.apache.org/jira/browse/JCR-3040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13086905#comment-13086905
] 

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

I'm working on tools for better managing and monitoring the repository, and increased JMX
support seems like the best way to do this, so I'm in favor of going into this direction.

However, I agree with the concerns raised here. There's no reason why collecting statistics
or exposing them through JMX should have *any* noticeable impact on performance. If there
is a measurable performance impact, then we're doing something wrong.

> 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.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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