
Chapter 13. Messaging and service integration 441
Figure 13-20 shows the possible connections:
Figure 13-20 Applications connecting to a messaging engine
13.6.2 One bus, one bus member (a cluster)
With the one bus, one bus member variation, the bus member is a cluster. By default, only
one application server in a cluster has an active messaging engine on a bus. If the server
fails, the messaging engine on another server in the cluster is activated, which provides
failover but no workload management.
The server with the active messaging engine has local access to the bus. However, the rest of
the servers in the cluster access the bus remotely by ...