Load Balancing

Because Directors take a central role with both Client and Engine traffic, they are a key object in configuring the load balancing of components. Directors allocate Clients and Engines to available Brokers.

The default policy for load balancing by Directors is by relative weight; essentially, a Director assigns Clients and Engines to Brokers so that they are equally distributed.

Directors balance load by using the following techniques:

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Clients are routed based on the roles that are assigned to the user running the Client.

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Each Broker can be configured with weight settings for Clients and Engines which balance the number of clients given to that Broker by the Director.

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Idle Engines are relocated to other Brokers if and when needed.

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An Engine configuration can be set to have a Home Broker. A Broker can be set up to have a set of Shared Brokers. Any Engine that uses that configuration is routed only to its Home Broker or any Broker that its Home shares to.