2011/11/10 Ryan Lane <[email protected]>: >> That's the whole point. For most interesting applications, "fast" >> automatic migration isn't anywhere near fast enough. Don't try to >> avoid failure. Expect it and design around it. > This assumes all application designers are doing this. Most web > applications do this fairly well, but most enterprise applications do > this very poorly.
I know. That's what makes them a poor fit for "the cloud". > Hardware HA is useful for more than just poorly designed applications > though. I have a cloud instance that runs my personal website. I don't > want to pay for two (or more, realistically) instances just to ensure > that if my host dies that my site will continue to run. My provider > should automatically detect the hardware failure and re-launch my > instance on another piece of hardware; it should also notify me that > it happened, but that's a different story ;). I'm not sure I count that as High Availability. It's more like Eventual Availability. :) -- Soren Hansen | http://linux2go.dk/ Ubuntu Developer | http://www.ubuntu.com/ OpenStack Developer | http://www.openstack.org/ _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
