JBossCache Ticket Registry performance under load?

[Pat Hennessy]

On 7/23/2007 11:45 AM, Brian Donnelly wrote:
> Thanks Scott,
> 
> I've attached my jbossCache.xml config file.  It is almost identical to the jbossTestCache.xml configuration included in CAS 3.0.6.  I did have to comment out the authentication protocol version tag because it was generating errors.
> 
> If anyone has any pointers or would be willing to send their JBossCache configuation parameters, I'd be very appreciative.
> 

Brian,

Did you ever find a fix for the org.jboss.cache.ReplicationException 
error you found?

I just setup the jboss replication using the directions on the CAS wiki 
(and the jbossTestCache.xml file).  On the dev cluster, I didn't get the 
error.  After putting it on our new to be production cluster, I've been 
finding the same error showing up as a RuntimeException with some of our 
test apps.  I don't think we putting these services under any real load 
though.

Pat

> Thanks,
> 
> Brian Donnelly
> --
> Brian Donnelly
> University of Calfornia, Davis
> Information and Educational Technology
> Middleware Team
> (530) 754-5909
> bdonnelly at ucdavis.edu
> 
> -----Original Message-----
> From: Scott Battaglia [mailto:scott.battaglia at gmail.com]
> Sent: Fri 7/20/2007 6:29 AM
> To: Brian Donnelly; Yale CAS mailing list
> Subject: Re: JBossCache Ticket Registry performance under load?
>  
> Brian,
> 
> We don't deploy that at Rutgers so I can't comment on that.  A few people
> have deployed it in production without issues.  Maybe you can include your
> configuration file and those who have deployed it successfully can compare
> it to theirs if they get a minute (hopefully).
> 
> Thanks
> -Scott
> 
> On 7/18/07, Brian Donnelly <bdonnelly at ucdavis.edu> wrote:
>> Hi all,
>>
>> We're getting ready at UC Davis to switch to a JBossCache Clustered
>> configuration for our CAS installation.  I have been load testing two
>> Redhat EL 5 clustered nodes running CAS 3.0.6 using the default
>> JBossCache implementation, (UDP multicast.)
>>
>> I've been using JMeter to generate ~7 login actions per second.  Both
>> clustered servers perform fine for several hours.  Somewhere in the
>> third hour of testing, I start seeing the following errors in the logs:
>>
>> 2007-07-18 13:43:54,813 ERROR
>> [org.jasig.cas.ticket.registry.JBossCacheTicketRegistry] -
>> <org.jboss.cache.ReplicationException: rsp=sender=169.237.104.235:53768,
>> retval=null, received=false, suspected=false>
>>
>> and
>>
>> 2007-07-18 13:48:33,448 ERROR
>> [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/cas].[cas]]
>> - <Servlet.service() for servlet cas threw exception>
>>
>> These start piling up until both servers stop responding to incoming
>> requests.  A restart is required to restore service.
>>
>> Has anyone else encountered errors of this type in their testing of the
>> JBossCache registry?
>>
>> Thanks,
>>
>> Brian Donnelly
>> --
>> Brian Donnelly
>> University of Calfornia, Davis
>> Information and Educational Technology
>> Middleware Team
>> (530) 754-5909
>> bdonnelly at ucdavis.edu
>> _______________________________________________
>> Yale CAS mailing list
>> cas at tp.its.yale.edu
>> http://tp.its.yale.edu/mailman/listinfo/cas
>>
> 
> 
> 


-- 
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Pat Hennessy, RHCE                        (path at dtcc.edu)

Senior Systems Specialist
Division of Information and Educational Technology
Delaware Technical and Community College
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