Broker 10.5 | webMethods Broker Documentation | webMethods Broker Administration Java API Programmer’s Guide | Managing Broker Clusters | Using Clusters | Maintaining a Connection Between Brokers in a Cluster | Activating the Keep-Alive Feature between Cluster Brokers
 
Activating the Keep-Alive Feature between Cluster Brokers
To activate the keep-alive feature between two Brokers in a cluster, you use the BrokerAdminClient.setRemoteBrokerKeepAlive method and specify the following two parameters:
*broker_name. The name of the Broker to which you want the remote Broker to issue keep-alive messages.
*KeepAlive. The number of seconds between the keep-alive messages. To disable gateway the keep-alive feature, specify 0 seconds.
Be aware that BrokerAdminClient.setClusterGatewayKeepAlive method activates the keep-alive feature in one direction. That is, it instructs the Broker to which the BrokerAdminClient client is connected, to issue keep-alive messages to a second Broker in the cluster. It does not instruct the second Broker to issue keep-alive messages. To activate the keep-alive feature in both directions, you must execute BrokerAdminClient.setRemoteBrokerKeepAlive on both Brokers.
To implement the keep-alive feature correctly, you must understand the conditions that cause the firewalls to drop a connection. Given this information, you can determine which Broker should issue keep-alive messages (it may be both) and the frequency at which the messages need to be issued to prevent the connection from dropping.