Re: Session and Multi Server Architecture

On 2/11/08, Per Jessen <per@computer.org> wrote: > mike wrote: > > I hope not. I've worked with this type of load-distribution since the > early 90s. (far from always IP-address based). > > Check out persistency in LVS for instance: > http://www.linuxvirtualserver.org/docs/persistence.html i know persistence handling is an option in LVS, but i haven't seen the need to use it. i use LVS right now without even bothering with any of that. [the only possibility would be if i needed to setup persistence for SSL. but i believe if client <-> LB, as long as the LB has it installed/presents a single SSL cert to the client it would still work. that one i wouldn't guarantee though :)] i suppose FTP would be a protocol that needs it. but nobody here is looking to load balance FTP on this list :) besides, if you are sticking a user on the same server, what happens when that server dies? possible connection stampedes to others, their session info and experience is trashed (unless LVS migrates it fast enough)