Dear all, 
 JBoss 4.0.3sp1 + JBoss Portal 2.2.1 

In my cluster, when I point to server A in IE(e.g. http://altair:8180/portal), 
it can show the default portal page and can login to the portal. But when I 
point to server B, it shows the login page of the portal, when I input 
admin/admin, it has exception.

When I view the server.log, it periodically shows "2006-06-12 11:23:06,247 WARN 
 [org.jgroups.protocols.UDP] discarded message from different group 
(portal.hibernate). Sender was altair:55944"

where altair is the server DNS name. 

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I think that it is related to the so cluster setting.

So I view the jboss-service.xml in portal-cms.sar/META-INF

         java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
         java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
         java.naming.provider.url=${jboss.bind.address:localhost}:1100
         jnp.disableDiscovery=false
         jnp.partitionName=${jboss.partition.name:DefaultPartition}
         jnp.discoveryGroup=${jboss.partition.udpGroup:230.0.0.4}
         jnp.discoveryPort=1102
         jnp.discoveryTTL=16
         jnp.discoveryTimeout=5000
         jnp.maxRetries=1


Does it mean using UDP for the communication within the cluster? In my company, 
we cannot use UDP, only TCP is allow, so how can I set to TCP? 

Please help!!

Many thanks

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