Web applications in a clustered deployment can provide better performance since multiple machines can handle more load than one. Clusters also provide high availability: if one machine goes off-line, clients can connect to another server in the cluster. To run your Web application in a cluster, you must configure a mechanism to support load balancing of HTTP requests, and optionally failover. For more information, see “Clustered Web applications” in Chapter 21, “Creating Web Applications,” in the EAServer Programmer’s Guide.
Chapter 5, “Web Application Tuning,” describes the Web application settings that you can tune for single-server deployments. In a clustered deployment, these additional settings affect performance:
Your choice of session replication options
The cache size, if replicating sessions in memory
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