From owner-freebsd-questions Sat Dec 9 14:23:42 2000 From owner-freebsd-questions@FreeBSD.ORG Sat Dec 9 14:23:40 2000 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from athserv.otenet.gr (athserv.otenet.gr [195.170.0.1]) by hub.freebsd.org (Postfix) with ESMTP id 6392C37B400 for ; Sat, 9 Dec 2000 14:23:39 -0800 (PST) Received: from hades.hell.gr (patr530-a080.otenet.gr [212.205.215.80]) by athserv.otenet.gr (8.10.1/8.10.1) with ESMTP id eB9MIKk10807; Sun, 10 Dec 2000 00:18:20 +0200 (EET) Received: (from charon@localhost) by hades.hell.gr (8.11.1/8.11.1) id eB9FASi33398; Sat, 9 Dec 2000 17:10:28 +0200 (EET) Date: Sat, 9 Dec 2000 17:10:28 +0200 From: Giorgos Keramidas To: Gabriel Ambuehl Cc: Alfred Perlstein , questions@FreeBSD.ORG Subject: Re: Load-Balancing - any solutions? Message-ID: <20001209171028.A32137@hades.hell.gr> References: <105102226954.20001205163641@x-itec.de> <20001205074217.Y8051@fw.wintelcom.net> <5676150678.20001205165002@buz.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.4i In-Reply-To: <5676150678.20001205165002@buz.ch>; from gabriel_ambuehl@buz.ch on Tue, Dec 05, 2000 at 04:50:02PM +0100 X-PGP-Fingerprint: 3A 75 52 EB F1 58 56 0D - C5 B8 21 B6 1B 5E 4A C2 X-URL: http://students.ceid.upatras.gr/~keramida/index.html Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Dec 05, 2000 at 04:50:02PM +0100, Gabriel Ambuehl wrote: > Hello Alfred, > > Tuesday, December 05, 2000, 4:42:17 PM, you wrote: > > Check out 'rsync' and the rest of the ports collection, there's good stuff > > in there. > > I'm still looking for something somewhat faster (i.e. no more than a few > seconds lag between the master and the slave servers)... I really don't know what will happen in web servers that have high loads, but what you describe seems to remind me of NFS. I haven't tested such a setup on high loads, but I would be interested to know what others have to say. On a side note, having read the thread so far, I like the Squid solution for quickly changing, dynamic stuff. But, even if you have a setup like: Internet --> Squid --+--> Apache (1) --+--> SQL server | | +--> Apache (2) --+ : : +--> Apache (n) --+ You are going to have a bottleneck not in the time it takes Apache to load and process a page, but on your SQL server. But if you use more than one SQL servers, you are going to need database mirroring too. The problem of getting two web servers to respond with the `same' data seems to be more complicated than plain `rsync' of two directories :/ I would be very interested to know what other people have to say on this one, though. Oh, and when this becomes kind of off-topic for -questions, perhaps we should take it to -chat. % giorgos To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message