Does OC4J support JMS clustering/failover?
The notion of clustering/failover in JMS has been used by a number of JMS vendors. The JMS spec/api itself has no mention or support for clustering. What vendors are often stating by using the term “JMS Clustering” is the ability to provide failover of their persistent queues. Oracle9iAS does the exact same thing, and more, with OJMS. Since AQ resides in the Oracle9i Database, you get all the failover and clustering (RAC) capabilities that Oracle9i provides. Messages are guaranteed to be delivered and they are recoverable in the event of some type of failure.