Re: Re: LVS (was: Session and Multi Server Architecture)

On Feb 12, 2008 10:55 AM, Per Jessen <per@computer.org> wrote: > Nathan Nobbe wrote: > > > i mean, i do understand the vserver concept, is LVS essentially the > > same as v-server, > > http://linux-vserver.org/Welcome_to_Linux-VServer.org ? > > Hi Nathan, > > they're two very different things. The VServer project makes multiple > servers out of one, LVS makes multiple physical servers appear as one. > > With LVS you can basically have e.g. 50 physical boxes accessed as if > they were just one big server. > > > also, i dont understand how LVS is used to implement a 'persistent' > > session. allow me to explain my disconnect.. so you are using > > virtual servers on a real system; what benefit, in the context of > > sessions does this provide over a single machine w/ 1 os? another > > fundamental disconnect is, how are you using these > > machines to store session state, a network filesystem? > > Each physical server will store session information locally, probably on > a local filesystem. Depending on your needs you could have a > distributed filesystem or a DRDB setup, but you'd have other reason for > having those. > > > also, in terms of scalability, isnt facebook proof that > > memcache can scale? > > I'd misunderstood how memcached works, hence my misguided comment about > it's lack of scalability. > > > /Per Jessen, Zürich excellent! thanks for your response, now i am at least an enlightened newb :D -nathan