On Thursday 20 April 2006 12:11, Stuart Henderson wrote: > > > 10.0.0.1 is master of CARP 10.0.0.3 and 10.0.0.2 is master of CARP > > > 10.0.0.4. > > > Then, use rdr load balancing on the firewall to hit the .3/.4 CARP > > > addresses, instead of the server addresses. > > > > > > At first glance this looks like it would work > > Yes, this works nicely.
Hi Stuart pf/CARP might worth a try then. The only issue I have is that it's doing whole-server load balancing which is no use if just Apache/lighttpd dies. (I'm more concerned with high-availability than load-balancing.) The best alternative I can see is software load balancing on the web servers, and the most promising I've found so far (in terms of lightweightness and simplicity) is Pound. From what I read, failover is best provided by Heartbeat although so far I have only skimmed a few FAQs. Do you think that avenue may lead to a more robust solution? I'm new to clustering and suffering from information overload! Ashley
