Re:High availability load balancing with HAProxy and CARP on...
by druiid on Thursday January 03, 2013 @09:41AM
(#5002502)
This is both load balancing and a redundant load balancer.
Traffic goes to all the backend web-servers under this scenario, through a single load-balancer device/server.
If that device goes down the secondary takes over.
While if you have millions of requests/sec this scenario wouldn't be quite enough for you, using haproxy with carp/ucarp/keepalived will get you at least 100k connections or more. If you need millions, then you have other problems to worry about as well :).
Traffic goes to all the backend web-servers under this scenario, through a single load-balancer device/server.
If that device goes down the secondary takes over.
While if you have millions of requests/sec this scenario wouldn't be quite enough for you, using haproxy with carp/ucarp/keepalived will get you at least 100k connections or more. If you need millions, then you have other problems to worry about as well :).