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https://issues.apache.org/jira/browse/OGNL-18?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adam Ruggles updated OGNL-18:
-----------------------------

    Attachment: thread-dump-lock.txt
                thread-dump-lock2.txt

I believe I am also having this issue.  In our test environment it is very 
difficult to reproduce, but in production on busy site it seems to be 
guaranteed to occur.

I've attached two full thread dumps.  To duplicate this in testing, I've had to 
deploy our app (without JSP precompilation).  And as soon as the app is 
deployed throw load at it.  I'm using JMeter for loading the server.

> Performance issue on high load (thread blocking)
> ------------------------------------------------
>
>                 Key: OGNL-18
>                 URL: https://issues.apache.org/jira/browse/OGNL-18
>             Project: OGNL
>          Issue Type: Bug
>            Reporter: Christian Grobmeier
>            Priority: Critical
>         Attachments: thread-dump-lock.txt, thread-dump-lock2.txt
>
>
> The Struts project is suffering from an issue occuring from OGNL on heavy 
> load.
> The issue in question (with details) is: 
> https://issues.apache.org/jira/browse/WW-3580
> A similar issues has been reported in the OpenSymphony bugtracker:
> https://issues.apache.org/jira/browse/WW-3580

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