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 “Deploying Web applications to a cluster” in Chapter 7, “Load Balancing, Failover, and Component Availability,” in the EAServer System Administration 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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