Communication Link

Communication Link is a property in the portal.properties file, which is the default configuration file for Sun GlassFish Web Space Server. You can override this property using portal-ext.properties file.

Set the JGroups properties used by the portal to communicate with other instances of the portal. This is only needed if the portal is running in a clustered environment. The JGroups settings provide a mechanism for the portal to broadcast messages to the other instances of the portal. The specified multi-cast address should be unique for internal portal messaging only. You will still need to set the Hibernate and Ehcache settings for database clustering.

comm.link.properties=UDP(bind_addr=127.0.0.1;mcast_addr=231.12.21.102;mcast_
port=45566;ip_ttl=32;mcast_send_buf_size=150000;mcast_recv_buf_size=80000):P
ING(timeout=2000;num_initial_members=3):MERGE2(min_interval=5000;max_interval=
10000):FD_SOCK:VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(gc_lag=50;retransmit_
timeout=300,600,1200,2400,4800;max_xmit_size=8192):UNICAST(timeout=
300,600,1200,2400):pbcast.STABLE(desired_avg_gossip=20000):FRAG(frag_size=80
96;down_thread=false;up_thread=false):pbcast.GMS(join_timeout=5000;join_retr
y_timeout=2000;shun=false;print_local_addr=true)