The following steps describe how to connect agents to a series of server endpoints with which, in the case of a server failure, the agents will attempt to communicate.
A high-availability server configuration using a series of server endpoints is shown in the following figure.
Figure 1. High-availability with a Series of Server Endpoints
For the purpose of this example, the following procedure assumes a two-node cluster. Two example cluster nodes have the following IP addresses: ip_node_1 and ip_node_2 (or you can use DNS names).
To configure agents to connect to a single endpoint:
Assuming that during installation, an agent was set to communicate with the server at ip_node_1, to enable the agent to also communicate with the server on the cluster node ip_node_2, you should configure the two servers with a network relay as follows:
- Install the Deployment Automation server application on two servers for the active-active feature. See Installing for a High Availability Implementation. These two servers are not used as a cluster with a load balancer.
- In the Deployment Automation web application, navigate to Management > Resources.
- In the Relays tab, click Create Network Relay.
-
In the
Create Network Relay dialog:
- Enter a Name for the second server.
- In the Host field, enter ip_node2. This is the remote hostname or IP address the server will use to connect to the network relay.
- Enter the JMS Port number that the server will use to communicate with the network relay over JMS protocol.
- Select the Active check box to tell the server to start the connection to the network relay.
- Click Save.
- Repeat this process for each cluster node.