Is it possible for continuations to be used in a clustered environment? A cursory look at ContinuationsManagerImpl leads me to believe that the continuation info is stored in forrest, a private HashSet. Therefore, it does not look like a cluster could share continuations -- is this right?
In order to make this possible, you would either have to share the continuation objects among the cluster, or serialize the continuation object itself on the web page. The continuations could be shared in a database, or perhaps with a JavaGroups-enabled container, similar to how Tomcat sessions are replicated. Maybe SwarmCache can be used as-is for this?
It seems like it might be easier to serialize the continuation objects and pass them back to the server the same way the continuation IDs are passed around. Of course they would have to be encrypted in some way to prevent people from tampering with them. This may or may not be practical depending on how big these objects actually are.
Is anyone working on this, or am I totally wrong and it is already possible?
cheers, -steve
