This page describes a sample TCP Gossip router configuration for JBoss 5 EAP. This example uses the default JGroups TCP configuration for JBoss 5 EAP.

Edit the following file in a text editor:

$JBOSS_HOME/jboss-as/server/myinstance/deploy/cluster/jgroups-channelfactory.sar/META-INF/jgroups-channelfactory-stacks.xml

Find the following section and change from:

<!-- Alternative 1: multicast-based automatic discovery. --> 
             <MPING timeout="3000"
                    num_initial_members="3"
                    mcast_addr="${jboss.partition.udpGroup:230.11.11.11}"
                    mcast_port="${jgroups.tcp.mping_mcast_port:45700}"
                    ip_ttl="${jgroups.udp.ip_ttl:2}"/>          
<!-- Alternative 2: non multicast-based replacement for MPING. Requires a static configuration
                  of *all* possible cluster members.
             <TCPPING timeout="3000"
                      initial_hosts="${jgroups.tcpping.initial_hosts:localhost[7600],localhost[7601]}"
                      port_range="1"
                      num_initial_members="3"/>

-->

To:

<!-- Alternative 1: multicast-based automatic discovery.  
             <MPING timeout="3000"
                    num_initial_members="3"
                    mcast_addr="${jboss.partition.udpGroup:230.11.11.11}"
                    mcast_port="${jgroups.tcp.mping_mcast_port:45700}"
                    ip_ttl="${jgroups.udp.ip_ttl:2}"/>

-->         
             <!-- Alternative 2: non multicast-based replacement for MPING. Requires a static configuration
                  of *all* possible cluster members. -->
             <TCPGOSSIP initial_hosts="${address1}[5555],${address2}[5555]"
                          gossip_refresh_rate="60000"
                          num_initial_members="3"/>

See http://www.jboss.org/community/wiki/JGroupsGossipRouter for more information on the JGroups Gossip Router.