You should take a look at Brad Fitzpatrick's presentations about how LiveJournal scaled up their systems. It's not a HOWTO, but it's definitely a good read for anyone working on scalable web apps with Perl and MySQL.

I believe the most recent version is at http://www.danga.com/words/2005_oscon/

In reply to Re: OT: Scalable web application architecture by dave0
in thread OT: Scalable web application architecture by badaiaqrandista

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