Installing the distributed front-end server#
Starting in HCL™ Launch 7.0.3, you can install a distributed front-end server. The front-end server supports high availability and fault tolerance to ensure success of your application delivery process.
You must have a standard HCL Launch server installed.
The below image is a recommended approach for managing large volumes of traffic coming through your instances. End-user HTTP traffic can be routed through a load balancer, that can then be handed out to the Distributed Front-End Servers. If the front-end server cannot directly service the request, it makes a request to the backend load balancer to handle. The front-end server proxy URL is based on Agent External URL configured on the System Settings page.
A front-end server does not participate in agent communication, workflows, emails, notification services, or cleanup. When connected to a front-end server, you can still do everything that you would be able to do on a normal HCL Launch server. Requests for services that are not available on a front-end server will proxy a request to the backend.
The following property must be enabled on the backend servers in
Add back end servers to Network>JMS Cluster in either one of the back end servers or in load balancer.
-frontend flag when running the installer. Add the flag to the installation file with the command
install-server.bat-frontend on Windows or
./install-server.sh-frontend on Linux.
Note: The front-end server must have the same shared filesystem as the High-Availability setup. For more information, see Setting up clusters of servers.
Parent topic: Installing the server