Hi, I had a few questions again on clustering/HA of xmlBlaster:
1) I wanted to know whether a HA setup could be achieved using the session and subscription persistence features. I'll be having two xmlBlaster nodes that would be managed by HA software and the client would connect to only one of the nodes using a virtual IP address. Sessions and subscriptions would be stored in Oracle. When the active node goes down, we would start up the second node, but can the second node can pick up the persistent data of the 1st node from the DB and load all the sessions and subscriptions? I'm thinking there should be some common key or identifier for the persistent data so both nodes would use the same data, perhaps something like node id? From the client perspective, it would be entirely transparent as they would only be connecting to the virtual IP address. 2) If suppose I wanted to implement mirroring of session and subscription info across nodes (which is being extremely optimistic :-) ), which would be a good place to start looking into (package, file, etc.) 3) For persistence of session and subscription info, if I wanted to use the JBoss distributed cache instead of a DB, I assume I need to create my own persistence plugin which would be an implementation of I_Map? Many thanks in advance! Kind regards, Saju
