Hi all, Does pound only fail over to an emergency back-end when there is no response at all ( i.e. a response slower than the TimeOut/ConnTO values) from the regular back-end(s) ? Is it possible to configure pound to fail over if it receives consistent 500/4xx errors from the regular back-end ?
Reason for asking : we have an old legacy IIS/ASP.NET back-end server which intermittently malfunctions and serves up 500 errors for 3 minutes or so , until it sorts itself out (IIS detects a deadlock in aspnet_wp.exe and restarts itself ). So far we've been unable to fix the deadlock issue on IIS so are investigating how to detect the failure condition from upstream and redirect requests to the emergency back-end for a few minutes until the back-end recovers, then switch back to using the regular back-end. Or any other suggestions welcome on a better way to do this.. thanks Robin London, UK
