Javadoc
Create a HornetQConnectionFactory which will receive cluster topology updates from the cluster as servers leave or join and new backups are appointed or removed.
The discoveryAddress and discoveryPort parameters in this method are used to listen for UDP broadcasts which contain connection information for members of the cluster.
The broadcasted connection information is simply used to make an initial connection to the cluster, once that connection is made, up to date
cluster topology information is downloaded and automatically updated whenever the cluster topology changes. If the topology includes backup servers
that information is also propagated to the client so that it can know which server to failover onto in case of live server failure.