> My trouble is that one of our customers is asking for a culster with 2
> machines (might be more in the future), that will do load balancing
> (one machine is not enough due to high trafic on the web
> server/mysql), and high availability (if one machine goes down, second
> one will still maintain up and working).

You're faced with an impossible requirement here:

If, as you've stated "one machine is not enough due to high trafic" a
single machine left over after a filure WON'T be able to keep you going.

For a high availability setup, you need a configuration where the
remaining node(s) after failure are still powerfull enough to carry on.

Bye, Martin

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