You can install multiple instances of WSO2 products in a cluster to ensure that if one instance becomes unavailable or is experiencing high traffic, another instance will seamlessly handle the requests. Clustering facilitates high availability, and failover support, and it significantly improves the overall performance of the message brokering.
For more information on clustering WSO2 products, see Clustering WSO2 Products. For information specific to clustering Message Broker, see Clustering Message Broker. For information on viewing clustering information in Message Broker, see Viewing Cluster Information.