From Developerworks, Repairing processes with WebSphere Process Server
WebSphere Process Server V6.1.2 supports manual repair and change of control flow logic. This article describes these repair features, provides useful tips, and identifies potential pitfalls when applying them. You’ll learn how to repair processes and dynamically react to cases in which modeled fault handling and automated recovery mechanisms are not useful in solving the situation.
This is an unbelievably complete article about BPEL processes and what happens when an error occurs. It also goes into what you need to consider at development time for error handling as well as your options once something has gone wrong.
A must read for anyone uses BPEL in an enterprise 24/7 solution and can’t just terminate business processes when something goes wrong.