Broker 10.5 | webMethods Broker Documentation | webMethods Broker Messaging Programmer's Guide | JMS Policy Based Client-Side Clustering | What is Client-Side Clustering for JMS Client Applications? | Indications for Using Load Balancing
 
Indications for Using Load Balancing
You should consider load balancing if the message flow rate requirements between publishers and subscribers are greater than the throughput that a single Broker, or Brokers belonging to a single Broker Server, is able to manage.
A typical situation for implementing a load-balancing solution is for high-volume guaranteed messages. This category refers to messaging environments with high-volume flow of guaranteed messages between publishers and subscribers. Since a Broker Server's throughput is constrained by its local disk performance, a single Broker Server may be unable to handle the message flow throughput.