From: Gary Wright Date: 2007-03-08T06:27:25+09:00 Subject: Re: Horizontal scaling - advice needed On Mar 7, 2007, at 3:41 PM, khaines@enigo.com wrote: >> Eventually the database will be the bottleneck, hence federation. > > Again, though, you'll have to scale very, very large before you > ever have to worry about the db being a bottleneck, provided you > pay attention to schema design and proper db tuning. I think that long before the database becomes a performance bottleneck you'll be worried about it being a single point of failure. Redundancy and availability issues are tricky even for low-volume applications. Gary Wright