This figure illustrates a one-to-many configuration, where a single Oracle HTTP Server instance is communicating with two OC4J hosts.
A one-to-many configuration, consists of one Oracle HTTP Server listener and multiple OC4J instances. In the figure below, a single Oracle HTTP Server instance is communicating with two OC4J hosts. OC4J Host 1 is running two servlet containers, and OC4J Host 2 is running one servlet container. Three connections are open between the servlet containers and a single mod_oc4j in the OC4J instance.