I've figured out my problem. It was answered in an earlier thread by
with the subject..
re:[cas-user] Redoing CAS - looking at LdapServiceRegistryDao and ehcache
The issue was that the "shared" property needs to be set to true in..
<bean id="cacheManager"
class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation"
value="WEB-INF/ehcache-replicated.xml" />
<property name="shared" value="true" />
<property name="cacheManagerName"
value="ticketRegistryCacheManager" />
</bean>
Once that was done, everything started working.
Between yesterday and today, I tried many changes. I can confirm that I
got the same results from openjdk-1.6, openjdk-1.7, as well as Tomcat6
and Tomcat7. I kept moving backwards in revisions and I'm now using
Sun/Oracle JDK 1.6 on Tomcat6. I'd like to go back to the openjdk
packages on Tomcat7 (for ease of updates). Authentication and
everything else was working with the different java/tomcat versions, it
was just the cache replication that was throwing the error. So I'm
thinking everything may be compatible between openjdk and sun/oracle jdk.
Hopefully, this will be helpful to others.
Thanks,
Pat
On 1/4/13 10:38 PM, Patrick Hennessy wrote:
> Greetings,
>
> I've been using memcache/repcache for our CAS servers, but wanted to try
> out ehcache since it looked like a better alternative. If I'm going
> down the wrong path, please let me know. :)
>
> I followed the directions on
> https://wiki.jasig.org/display/CASUM/EhcacheTicketRegistry and got
> something working, but it doesn't seem to replicate. After a log in on
> one node, I get the following error..
>
> 2013-01-04 22:11:54,904 ERROR
> [net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator] -
> <Exception on flushing of replication queue: null. Continuing...>
> java.lang.NullPointerException
> at
> net.sf.ehcache.distribution.RMISynchronousCacheReplicator.listRemoteCachePeers(RMISynchronousCacheReplicator.java:335)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.writeReplicationQueue(RMIAsynchronousCacheReplicator.java:312)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.replicationThreadMain(RMIAsynchronousCacheReplicator.java:127)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator.access$000(RMIAsynchronousCacheReplicator.java:58)
> at
> net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator$ReplicationThread.run(RMIAsynchronousCacheReplicator.java:389)
>
> I'm using the ehcache-replicated.xml file from..
>
> https://github.com/Jasig/cas/blob/master/cas-server-integration-ehcache/src/test/resources/ehcache-replicated.xml
>
> I was using tcpdump to watch the traffic between nodes when logging in.
> I only saw traffic when I removed "remoteObjectPort=41002" from the
> Listener section. But even then I wasn't able to validate a service
> ticket from the other server after logging in.
>
> Something else that seemed odd was that I only saw one file in
> /tmp/tomcat7-tomcat7-tmp..
>
> org%002ejasig%002ecas%002eticket%002e%0054icket%0047ranting%0054icket.data
>
> I would've expected to find a data file for the service tickets as well.
> That file does grow from a zero size to a couple bytes after logging
> in. I imagine that file would grow on the other node as tickets are
> replicated, right?
>
> I have checked what I believe are the obvious problems after reading the
> mailing list. All traffic between servers is allowed and both servers
> have ntp running.
>
> Does anyone else familiar with ehcache have some pointers? I'm running
> CAS 3.5.1 with openjdk-7-jdk and Tomcat 7 on Ubuntu 12.04. I can reply
> with some of the config files or my pom.xml if needed.
>
> Thanks,
>
> Pat
>
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