Creating cluster connections
A server connection to a cluster (formerly known as a network relay) is a setting on an HCL Launch server that opens a Java™ Message Service (JMS) port for communication with other servers. These cluster connections are necessary for servers in a cluster to communicate.
Before you begin
About this task
Cluster connections create a JMS mesh, which facilitates JMS communication between servers in a clustered high-availability server configuration. See Setting up high-availability clusters.
Cluster connections are required only if you have more than one server. Also, they facilitate communication only among servers; cluster connections are not used for agents or agent relays. Because the servers use the same database, you can create connections on any server; the other servers all have access to those connections.
Procedure
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On any server in the cluster, click
.The Connect Server To Server Cluster dialog box is displayed.
- Enter a name for the cluster connection.
- In the Host field, enter the host name or IP address of the target server.
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In the Port field, enter the JMS communication port of the
target server.
The default server JMS communication port number is 7918.
- Select the Active check box.
- Click Save.
- On the same server, repeat the process to create a connection to each server in the cluster, including a connection that points to the current server itself.
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Restart the targeted servers.
If you create the cluster connections on server A, for example, restart servers B and C to ensure that they can communicate with one another.