[unilynx]

> So what happens when one of the servers is offline? Say I stop the US server:

> service nginx stop

But that's not how you should test this. A client will see the connection being refused, and go on to the next IP. But in practice, a server may not respond at all, or accept the connection and then go silent.

Now you're dependent on client timeouts, and round robin DNS will suddenly look a whole lot less attractive to increase reliability.

[globular-toast]

Yes, this can be tested by just unplugging or turning off a machine/VM with that IP address. Stopping a service is a planned action that you could handle by updating your DNS first.

[Joe_Cool]

Yeah SIG_STOP or just ip/nftables DROP would be a much more realistic test.