Horizontal clustering in Apache Tomcat 7

For horizontal clustering, we have to configure at least two instances of Apache Tomcat on two different physical or virtual systems. These physical machines can be on the same physical network. It also helps in providing a high-speed bandwidth to the system.

Note

If you want to configure clustering on different networks, then you have to open the firewall between the two networks for the AJP port and the clustering port.

There are prerequisites for configuring horizontal clustering. The following are the details:

• Time sync between the two servers

• Proper network connectivity between the two servers

• Firewall ports between the two servers (if you are connecting from a different network)

In order to configure horizontal clustering, you have to perform the following steps:

1. 1. Installation of the Tomcat instance

2. 2. Configuration of the cluster

3. 3. Apache HTTP web server configuration for the horizontal cluster

Installation of the Tomcat instance

We have already...