Date: Wed, 24 Apr 2002 08:24:38 -0500 From: Jorge Biquez <jbiquez@icsmx.com> To: freebsd-isp@freebsd.org Subject: Re: HTTP Load Balancing and Availability Solutions Message-ID: <5.1.0.14.2.20020424082236.03af0e40@icsmx.com> In-Reply-To: <1019652482.38204.4.camel@xyzzy.intranet.snsonline.net> References: <3CC6A5D2.3070701@emre.de> <3CC6A5D2.3070701@emre.de>
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Hello. I'm doing a simple but effective load balancing on the DNS side but the=20 solution runs on Mac. I'm using QuickDNS from Men & Mice. Works nice and=20 you can have all the servers you want on the balance registers... btw, the= =20 version is the version that runs on Mac OS 9.x , they took out that feature= =20 on the Mac OS X version. Give it a try... JB At 22:48 24/04/02 +1000, you wrote: >Depending on the nature of the project and the availability required I >would only recommend a software based solution for a project that didn't >have a requirement of more than 95% uptime, even with things like >mod_proxy running on 1 web server you are still vulnerable if that one >web server dies, as far as round robin dns goes this is a hack and >should never be used in a production environment as due to the many >broken clients around many will cache the first reply only and as such 1 >web server will see a lot higher load than any others. > >My recommendation would be should it absolutely have to be done with >software then go with the mod_proxy and a 1 hour ttl for your www >address (anything less than an hour is usually ignored), this way a >replacement box can take over the proxying server inside of an hour >should there be any issues. > >Cheers, > >Mark > >On Wed, 2002-04-24 at 22:32, Emre Bastuz wrote: > > Hi, > > > > I=B4m looking for a software that does the job of accepting > > HTTP request as a webserver and then distributes these > > to other servers - depending on which one is currently up. > > > > We have a customer who wants some kind of failsafe solution. > > Load balacncing is not the main issue - instead we want to > > configure one main webserver, in case this one fails the > > software is supposed to switch over to the other webserver > > for HTML file retrieval. > > > > After some quick and dirty lookup in Google I found this > > software called "FreeQualizer" (http://www.coyotepoint.com), > > which sounds nice but is not free. > > > > If it=B4s remarkably good, it might be worth giving a try. > > Anyone got any experience with this one ? > > > > Before chosing this one though, I=B4d like to know if there > > are other well known and reliable solutions out there. > > > > Apache with mod_proxy/mod_rewrite also seems like an alternative > > (I found this interesting article on > > http://www.devshed.com/Talk/Books/ProApache/page6.html) - I=B4m > > not sure if the mod_proxy/mod_rewrite stuff only works for load > > balancing or also can handle outages of the 'backend' servers. > > > > Any suggestions ? Ideas ? URL=B4s ? :) > > > > Thanks, > > > > Emre > > > > > > -- > > Emre Bastuz > > info@emre.de > > http://www.emre.de > > UIN: 561260 PGP Key ID: 0xEA0E2CA1 > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-isp" in the body of the message > > >-- >Mark Sergeant >Senior Unix Systems Administrator > >L=F4=F4kSmart International Pty. Ltd. >Level 5/388 Lonsdale Street >Melbourne, VIC, 3000 >Australia >P. (03) 9648 2201 >F. (03) 9648 2244 >http://www.looksmart.com.au > >The referring document contains privileged and confidential information. >If >you are not the intended recipient you must not copy, distribute or take >action with regards to the content, we request that you notify LookSmart >International Pty. Ltd. immediately and remove all traces of this >document. >Any views expressed in this message are those of the individual sender, >except where they are specifically stated to be the views of LookSmart >International Pty. Ltd. > >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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