What happens to outbound invocations bound to non-transactional protocols (such as HTTP) in the event of system failure?
A. In the event of system failure, a non-transactional protocol adapter will typically mark an outbound in-progress message exchange as “failed”; such failures are reported back to the client (typically a BPEL process) using PXE’s framework. A protocol adapter may also be implemented so as to re-try the original request or employ any other suitable recovery mechanism.