[rules-users] Drools Flow, threads and persistence in a clustered environment

Hello, We plan to use Drools (Flow) in our application for managing long-running processes. High-availability is important to us and therefore we target a clustered JBoss environment with 3 nodes. We are looking for advice on how to approach this from a Drools perspective. Can anybody share their experiences on running Drools in a cluster? The following scenarios come to mind: 1) A "singleton" ksession runs constantly on one of the nodes and does all the work; it migrates when the node goes down to another machine. 2) Multiple "ksession" instances on different nodes (for distributing load); when one fails the other picks up its processes by having a second "ksession" instance created on it and resuming execution. Are there any wrapper/utility libraries for Drools that help in clustered environments? Thank you