Hi David,
> I just want to say first of all that haproxy is incredibly useful and > I've enjoyed working with it tremendously. Thank you! > > My question is if a server is disabled because of a failed http health > check and there are requests in flight, will the requests from the > disabled app be returned to the client? Yes, the response will be returned. We don't kill because of a failed health check. > We are artificially marking servers as down in the event that the > server is going into maintenance mode and are trying to avoid > losing at requests. Note that there is a proper way to do it, checkout: set server <backend>/<server> state [ ready | drain | maint ] http://cbonte.github.io/haproxy-dconv/configuration-1.5.html#9.2-set%20server Regards, Lukas