Date: Tue, 3 Aug 1999 09:57:31 -0400 (EDT) From: Barrett Richardson <barrett@phoenix.aye.net> To: Steve Hovey <shovey@buffnet.net> Cc: Mitch Vincent <cygone@zoomnet.net>, freebsd-isp@FreeBSD.ORG Subject: Re: Loadbalance webservers Message-ID: <Pine.BSF.4.01.9908030955260.2994-100000@phoenix.aye.net> In-Reply-To: <Pine.BSF.4.05.9908030847010.9007-100000@buffnet11.buffnet.net>
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You can just have multiple address records
www IN A x.x.x.3
IN A x.x.x.4
.
.
.
IN A x.x.x.n
On Tue, 3 Aug 1999, Steve Hovey wrote:
>
> Anyone know a good place they can point me to for the how-tos of round
> robin DNS?
>
> On Mon, 2 Aug 1999, Mitch Vincent wrote:
>
> > Isn't the most common way of load balancing something like a web server,
> > just round-robin DNS?
> >
> > I know there are several hardware solutions for load balancing, but I'd say
> > round-robin is the most commonly used non-hardware method.
> >
> >
> > -Mitch
> >
> > "When all your plans fail, backup, re-group and press on. The only real
> > failure is quitting..."
> >
> > -----Original Message-----
> > From: Craig W. Shaver <cshaver@infoseek.com>
> > To: LutzRab@omc.net <LutzRab@omc.net>; freebsd-isp@FreeBSD.ORG
> > <freebsd-isp@FreeBSD.ORG>
> > Date: Monday, August 02, 1999 5:04 PM
> > Subject: Re: Loadbalance webservers
> >
> >
> > >
> > >> Subject: Loadbalance webservers
> > >> Reply-To: LutzRab@omc.net
> > >> X-mailer: Pegasus Mail for Win32 (v3.11)
> > >> Sender: owner-freebsd-isp@FreeBSD.ORG
> > >> X-Loop: FreeBSD.org
> > >> Precedence: bulk
> > >>
> > >> We have the problem to split the traffic to a busy website on two or
> > >> more webservers. This needs to be done in a way that the client doesn't
> > >> realize that there are different machines serving the same domain.
> > >>
> > >> We use 3.2.STABLE with apache 1.3.6/php.
> > >>
> > >> Is there an approach to do this under FreeBSD?
> > >>
> > >> I guess that yahoo.com does not have just one frontend webserver...
> > >>
> > >> lutz rabing
> > >> -OMCnet Internet Service GmbH-
> > >>
> > >
> > >
> > >I've seen two that work pretty well, but they are not shareware/open
> > >source. One method is to use cisco local director. The cisco people
> > >are coming out with a revision on this that allows you to run a load
> > >input back to the director from a program running at a specific port on
> > >your individual web server. That would allow you to determine a factor
> > >that tells the cisco box how loaded you are :). That could be
> > >determined by load, cpu utilization, memory usage, swap, etc. The
> > >current version of local director uses the number of connections and any
> > >predetermined heuristic that you input for load balancing.
> > >
> > >Another solution is Resonate. I am currently using that on
> > >http://translator.go.com/ for both the front ends and back ends. It is
> > >very flexible and can be configured to do all sorts of custom load
> > >balancing. It can even be used to map a single port to multiple ports.
> > >They have a version for Linux, but not for freebsd. Maybe if enough of
> > >us ask they could do one for freebsd. They seem to be pretty responsive
> > >to my questions. They run agents on multiple servers that have been
> > >ifconfig'd to answer to the same ip. The agents talk to each other and
> > >do heartbeats. One agent is the master, another is the failover
> > >scheduler, and the rest are just plain servers. This package is easy to
> > >set up and administer. I like it.
> > >
> > >
> > >
> > >--
> > >cshaver@infoseek.com (408)543-6451
> > >Craig Shaver, Productivity Group
> > >POB 60458 Sunnyvale, CA 94088 (650)390-0654
> > >http://www.progroup.com/ mailto:craig@progroup.com
> > >
> > >
> > >To Unsubscribe: send mail to majordomo@FreeBSD.org
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> > >
> > >
> >
> >
> >
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> > with "unsubscribe freebsd-isp" in the body of the message
> >
>
>
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