Load balancing allows multiple consumers on one or more Integration Servers to retrieve and process messages concurrently. Load balancing is necessary for concurrent JMS triggers regardless of whether or not they are running in a cluster of Integration Servers. This is because concurrent JMS triggers use multiple consumers. Each consumer receives a message from the JMS provider, processes the message, and acknowledges the message to the JMS provider. Each consumer needs to consume a message from the same destination, but not process any duplicate message. For information about configuring load-balancing, see webMethods Integration Server Administrator’s Guide.