You could also considering using the errorloc directive, a 503 response will be emitted when there is no backed server available to service the request.
There's a table of response codes, and what circumstances they are generated under, in the configuration.txt. Search for "Haproxy may emit the following status codes by itself". -JohnF > -----Original Message----- > From: Sun Yijiang [mailto:sunyiji...@gmail.com] > Sent: February 24, 2009 4:59 AM > To: kuan...@mail.51.com > Cc: haproxy@formilux.org > Subject: Re: Error / Under Maintenance notice page? > > Thanks, it's inspiring. Actually I can use the proxy server > itself as the backup server (run another HTTP server that > only accepts local requests). That would be the closest > solution to what I want. > > Steve > > > 2009/2/24 FinalBSD <final...@gmail.com> > > > Hi, > Maybe you can specify a backup server as a backend > server use the "backup" keyword. > > Regards! > > > > > > 2009/2/24 Sun Yijiang <sunyiji...@gmail.com> > > > Hi all, > > When all back-end servers are down or in > maintenance mode, is it possible for HAProxy to return a > webpage (saying "Sorry, we are in maintenance mode, please be > back in 30 minutes", etc.) for all requests? > > > Steve > > > > >
