Date: Mon, 2 Aug 1999 18:49:44 -0500 From: "Alejandro Ramirez" <ales@megared.net.mx> To: "Mitch Vincent" <cygone@zoomnet.net>, <freebsd-isp@FreeBSD.ORG> Subject: RE: Loadbalance webservers Message-ID: <014f01bedd41$b21b5120$fca3f9cf@megared.net.mx> References: <003b01bedd3e$e0378b80$0200000a@windows.cygone.com>
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Hi, Take alook at this, it may help you: http://www.stanford.edu/~riepel/lbnamed/ Ales ----- Original Message ----- From: Mitch Vincent <cygone@zoomnet.net> To: <freebsd-isp@FreeBSD.ORG> Sent: Monday, August 02, 1999 6:29 PM Subject: Re: Loadbalance webservers > 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 > >with "unsubscribe freebsd-isp" in the body of the message > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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