In jBPM 5.3 you will need to create all the logic to handle multiple sessions in a cluster. For that version we usually recommend replication of the sessions.
You should take a look at what we are providing in 6.x where the cluster support has being improved a lot. If you cannot work with 6.x yet, you can borrow some ideas from there.
Hi Mauricio Salatino
Thanks for the replay, Just I read the JBPM6 doc . Still I have some doubt .
Suppose a Human task is there in the Process definition and the process instance is running in the Node 1 -> session 1.
If a task complete request is coming to node 2-> then how it will work?