Dmitriy, On Mon, Nov 24, 2008 at 4:54 PM, Dmitriy Samovskiy <dmitriy.samovskiy at cohesiveft.com> wrote: > How do you define "messages in flight" in this scenario? On a related note, there is an FAQ on this: http://lettuce.squarespace.com/faq/flow-control/what-is-a-message-in-mid-flight.html Ben