Date: Wed, 30 Aug 2006 18:33:09 +0400 From: Gleb Smirnoff <glebius@FreeBSD.org> To: Max Laier <max@love2party.net> Cc: freebsd-net@FreeBSD.org, Baldur Gislason <baldur@foo.is> Subject: Re: Load balancing for web servers Message-ID: <20060830143309.GY76666@FreeBSD.org> In-Reply-To: <200608301623.01478.max@love2party.net> References: <20060830131929.GD804@gremlin.foo.is> <20060830132659.GF30474@catpipe.net> <200608301623.01478.max@love2party.net>
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On Wed, Aug 30, 2006 at 04:22:54PM +0200, Max Laier wrote: M> > > I'd like to set up a load balancing and resiliance system to M> > > load balance between a bunch of web servers running Apache tomcat M> > > (slow java stuff). Ideally I'd like each client IP to get mapped to a M> > > certain server and keep that mapping throughout the entire session. M> > > I'd also like to have some means of detecting a server that goes down M> > > and yank it from the load balancing pool. I do understand I may have M> > > to write some code on that side. M> > M> > pf and sticky rdr. M> > M> > Use a shell script that pings the hosts on the backend, to M> > insert/remove them from a persistent table. M> M> Have a look at: http://www.countersiege.com/doc/pfsync-carp/#big for one M> idea. All requirements (carp, pf and pfsync) are available in FreeBSD as M> well. Yeah, I was just looking for that URL to post it... :) Also, I'm using a small program to monitor backends and edit the pf tables: http://people.freebsd.org/~glebius/pfmon/ -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE
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