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From Christian Folini <christian.fol...@post.ch>
Subject Re: [users@httpd] Web server fail over setup
Date Wed, 03 Oct 2007 12:32:56 GMT
On Wed, Oct 03, 2007 at 05:04:29PM +0500, Asrai khn wrote:
> So I am looking for suggestions how to make his failures of web server less
> pain.

Lot of suggestions are possible, but they all inflict pain. 
A very clean and widspread solution is to have two identical
webservers (use a deployment script to keep the servers
absolutely in sync) and use a hardware loadbalancer in front 
of the two servers. This is likely to cause financial pain.

An alternative is to setup Linux HA-cluster. There are
lot of how-tos around. Still the learning curve is so
steep, it means pain. Not theoretically, but in practice,
high-availability is only the goal. At first, it just
hurts.

You could also try to go with the most simple solution
and make your server more stable. If you know
you can cut your downtime by 50% by investing a week
of work in the server, then this is probably worth
it. Unless you need to cut it by 95% or 99%. But
this would mean a lot of pain anyways.

regs,

Christian


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