4.3.4 Installing the Load Balancer Proxy
This proxy can also be used for single sign-on purposes. See Configuring Single Sign-On (SSO) in Integration for more details.
The Proxy or Load-Balancer is a lightweight application (servlet) that forwards requests from clients to server nodes. The proxy obtains its settings from a copy of the sree.properties file. This copy can be shared with the cluster nodes (as described below) or stored independently (for example, in case the cluster is running outside the company firewall and cannot access a shared drive).
The Load Balancer node uses a different servlet than the other nodes. The Cluster servlet (inetsoft.sree.web.ClusterServlet) runs within the SREE webapp. It is recommended that the Cluster servlet be the only servlet deployed on its web server so that the process is lightweight and not prone to failures from other applications in the same web server.
Follow the steps below to configure the Load Balancer:
1. Run the Style Intelligence installer on the machine that you want to host the Load Balancer.
2. On the 'License Key' page, enter the appropriate key.
3. On the 'Installation Type' page, select the 'Cluster Proxy Server' option.

4. On the 'Server Configuration' page, make the following settings:
a. Set the 'Shared registry directory' to the SREE Home directory that you shared during the installation of Node 1. (See Installing Node 1 for Repository and Admin Servlets.)
b. Set the 'Address' and 'Port number' as appropriate for the machine onto which you are installing the Cluster Proxy.
c. Select the cluster load balance 'Algorithm'. Round Robin assigns requests to the registered nodes in sequence, while Load-based assigns requests based on node's load. You can change this later from the 'Server' > 'Cluster' page of Enterprise Manager.

5. Follow the rest of the on-screen installation instructions to complete the installation of the Cluster Proxy.
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