I've seen references to JForum being able to run in a clustered environment. Is there any documentation around setting up JForum to run clustered?

Specifically, I'm interested to know what the requirements are for running JForum clustered. Can JForum run clustered on a series of Tomcat instances or does clustering require JBoss or other servlet container? We will be running JForum using Oracle as the persistence layer. Are there clustering concerns with that we need to be aware of with this configuration?

Any information related to configuration requirements would also be very helpful. Thanks in advance.