Multiple data centers and HTTP traffic: DNS Round Robin is the ONLY way to assure instant fail-over?
- by vmiazzo
Hi,
Multiple A records pointing to the same domain seem to be used almost exclusively to implement DNS Round Robin as a cheap load balancing technique.
The usual warning against DNS RR is that it is not good for high availability. When 1 IP goes down clients will continue to use it for minutes.
A load balancer is often suggested as a better…
