Unable to retrieve XForms engine from session cache

I’m getting the following error occasionally after restarting the application.  Anybody have any idea what may cause this?

2007-09-26 16:28:49,910 http-8080-Processor4 ERROR webapp.ProcessorService  - Exception at line 55, column 103 of oxf:/ops/xforms/xforms-server.xpl (reading processor output: name='response', id='xml-response')
org.orbeon.oxf.common.OXFException: Unable to retrieve XForms engine state from session cache.

Thanks

Jack

---------------------
Jack Cox
CapTech Ventures, Inc.
1118 W. Main St.
Richmond, VA 23220
804-306-4710


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Hi Jack,

On 9/26/07, Jack Cox <[hidden email]> wrote:
>  I'm getting the following error occasionally after restarting the
> application.  Anybody have any idea what may cause this?
>
>  2007-09-26 16:28:49,910 http-8080-Processor4 ERROR webapp.ProcessorService
> - Exception at line 55, column 103 of oxf:/ops/xforms/xforms-server.xpl
> (reading processor output: name='response', id='xml-response')
>  org.orbeon.oxf.common.OXFException: Unable to retrieve
> XForms engine state from session cache.

This happens when you open an XForms page, restart the server, and try
to continue using that page after the server have been restarted. The
XForms engine will be looking for information in the session, it can't
find it, and will throw this exception. Reloading the page usually
gets you around this problem.

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
http://www.orbeon.com/



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Alessandro Vernet wrote: Note that some work on reducing occurrences of this error is planned for
a couple of weeks from now. See also the "Persistent session cache"
section of this wiki page:

   https://wiki.objectweb.org/ops/Wiki.jsp?page=XFormsCachingImprovements

-Erik

--
Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/



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People,

I figured out what it is.  The property oxf.xforms.cache.session.size parameter was too small for one of the queries being returned by exist.  So, it apparently overflowed the cache and caused all manner of problems.

Jack


On 9/26/07 4:43 PM, "Jack Cox" <[hidden email]> wrote:

I’m getting the following error occasionally after restarting the application.  Anybody have any idea what may cause this?

2007-09-26 16:28:49,910 http-8080-Processor4 ERROR webapp.ProcessorService  - Exception at line 55, column 103 of oxf:/ops/xforms/xforms-server.xpl (reading processor output: name='response', id='xml-response')
org.orbeon.oxf.common.OXFException: Unable to retrieve XForms engine state from session cache.

Thanks

Jack

---------------------
Jack Cox
CapTech Ventures, Inc.
1118 W. Main St.
Richmond, VA 23220
804-306-4710

---

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---------------------
Jack Cox
CapTech Ventures, Inc.
1118 W. Main St.
Richmond, VA 23220
804-306-4710


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