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TIBCO GridServer® 7.1.0

# Failover Brokers

In the fault-tolerant configuration, you can set up some Brokers as Failover Brokers. When a Driver logs in to a Director, the Director first attempts to route it to a non-Failover Broker. If no non-Failover Brokers are available, the Director considers all Brokers and typically routes the Driver to a Failover Broker.

GridServer configuration with Failover capability

A Failover Broker without active Services is not considered for Engine routing. If it has active Services, it is considered like any other Broker, and follows Engine routing like any other Broker. Thus, if a Failover Broker becomes idle, its Engines are routed back to other Brokers.

The Primary Director monitors the state of all Brokers on the grid. If a Driver that is logged in to a Failover Broker is able to log in to a non-Failover Broker, it is logged off so it can return to the non-Failover Broker. All running Services continue on the new Broker by auto-resubmission.

By default, all Brokers are non-Failover Brokers. Designate one or more Brokers within the grid as Failover Brokers when you want those Brokers to remain idle during normal operation.

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