IBM MQ RDQM (Replicated Data Queue Manager)
RDQM (Replicated data queue manager) is a high availability solution that is available on Linux. RDQM configuration consists of minimum three servers.one instance is running which synchronously replicated data to other two instances. Three nodes can have used to greatly reduce the possibility of a split-brain situation arising. The group configuration of three nodes is handled by pacemaker and replicated between three nodes is handled by DRBD
Benefits of RDQM:
1. High availability.
2. Automatic Replication.
3. The messages will be routed with zero down time.
4. The Pacemaker is a Benefit which monitors the Queue Managers and check for every second as they are working or not.
Software Required IBM MQ Advance v 9.0.4&above.