There are several locations to look for information in case trouble strikes:

If there are multiple JBoss installations running in your local network you need to assign a different partition UDP group to each cluster! This can be done by adding -Djboss.partition.udpGroup= (or any other multicast address you choose thats available) to the start script/command shown in Starting [fleXive].

In order to run JBossCache on Linux IPv4 needs to be defined as the preferred IP stack. In the Glassfish admin console, go to Application ServerJVM SettingsJVM Options and add the following option: