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From "Alex Parvulescu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JCR-3040) JMX Stats for the Session
Date Mon, 08 Aug 2011 15:34:27 GMT

     [ https://issues.apache.org/jira/browse/JCR-3040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Parvulescu updated JCR-3040:
---------------------------------

    Attachment: jr-test.log
                JCR-3040.patch

point taken on the patch.

I've rolled-back everything, and I'm not re-submitting the JMX Session stats as a patch.
I've also ran the performance tests (ConcurrentReadTest and ConcurrentReadWriteTest) and attached
the results, to analyze the performance impact.

The problem with these tests is that I ran them on my machine, which I think is error-prone
as it is also dependent on the background noise. I've tried to not stress it much (no eclipse
running, etc), but I guess it is not 100% bullet proof.
It would be interesting to run the tests on a continuous integration machine, if there is
any available.

In jr-test.log, you'll find the test results. I ran them 5 times, each time running the 2
versions of the code (with and without my changes to the session state object).

I'm really interested in your opinion about the test results.



> 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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