[simoncion]

> ...but that doesn't mean r16 -> r17 didn't make changes you can't safely load.

Oh yeah. I know. I would expect for some-to-many minor things (like the TCP bug you mentioned), this wouldn't be an insane way to do a hot upgrade. Guess one would need to make a close study of the diffs.

Regardless, I mentioned the fact that this isn't a good idea for any novice who might stumble across this comment months or years hence and get the wrong idea. :)

> ...maybe I should just run CARP myself on the hosts...

Oh, CARP is so cool. It's a bit of a pity that ucarp doesn't support IPv6. But, how does CARP replace a load balancer? Isn't it used for single host availability, or is my understanding too narrow?

[toast0]

Oh, I meant a os kernel bug; no way to hotload those.

I have two servers, if I get two carpable ips, and may each server primary on one, and put them both in DNS, I have load balancing and failover. If I just use one IP, at least I have failover, anyway I need each server to be able to handle full load, so I could have hot-warm instead of hot-hot.

(with more than two servers, need to figure something else out, probably two boxes running a simple load balancing in front of the rest of the cluster.