Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Performance Tuning Guide

Load Balancing

For information on how to configure RMI/IIOP for multiple application server instances in a cluster, Chapter 10, RMI-IIOP Load Balancing and Failover, in Sun Java System Application Server Enterprise Edition 8.1 2005Q2 High Availability Administration Guide.

When tuning the client ORB for load-balancing and connections, consider the number of connections opened on the server ORB. Start from a low number of connections and then increase it to observe any performance benefits. A connection to the server translates to an ORB thread reading actively from the connection (these threads are not pooled, but exist currently for the lifetime of the connection).