What options does Oracle provide for Application Failover in the J2EE container, OC4J?
Oracle9iAS’s J2EE container, OC4J provides two high performance mechanisms to transparently share state with other servers: (1) Session state replication, which is supported for both EJB sessions and Servlet (or JSP) Sessions, and (2) Java Object Cache, which supports replication and persistence of any Java Object. In order to implement either of these solutions, Oracle9iAS provides a simple, GUI, wizard driven way to cluster OC4J instances across multiple machines.