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I just a couple of tweets that got my attention.

This one

Digg: 200MM page views, 500 servers. Stack Overflow: 60MM page views, 5 servers. What am I missing?

and then this one

(nb Stack Overflow is ASP.NET MVC + SQL Server, Digg was LAMP)

Is this true? how can that be? there has to be some kind of error in digg's architecture, right?

1

Stack Overflow does in fact run on ASP.NET MVC and SQL Server. I don't think there's anything wrong with Digg's LAMP implementation per se; they just did it differently.

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I hoped it would run on Ruby since All The Cool Kids Use Ruby

1

You assume scaling is linear. It is not. Crap happens when it doesn't fit in memory anymore. Happened about 1 1/2 months ago, as near as I can tell, without any proof beyond the previously-remarkable-perf from the /reputation link and the lack of spinners.

And losing some of my favorite queries, got the lolcats several times on my customized tag rep queries. Sorry for that btw guys, I know SQL query timeouts suck.

Scaling is tough, I trust these guys to get it right. Even if it does suck mud once in a while. Great job, this has to be hard.

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