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Capacity planning for growth is not a new concept in web operations, but planning for the explosive and unpredictable types of growth that social applications experience is a whole new ballgame.
This talk will take a look at new and different approaches to capacity planning, and how we do it at Flickr. John Allspaw will cover real-world challenges and lessons learned, on the following areas:
Measurement: Planning used to be driven only by server statistics and gut feelings. Social metrics also need to be taken into account as well as world events that could effect the community in unexpected ways.
Architecture: Making your application scalable isn’t the end of the story. Being capable of deploying capacity quickly isn’t an option, it’s a requirement.
Economics: Purchasing and deploying capacity too late can result in frustrated users and a stressed infrastructure. Deploying it too early can waste time and money.
John has worked in systems operations for over fourteen years in biotech, government and online media. He started out tuning parallel clusters running vehicle crash simulations for the U.S. government, and then moved on to the Internet in 1997. He built the backing infrastructures at Salon, InfoWorld, Friendster, and Flickr. He is now VP of Tech Operations at Etsy, and is the author of The Art of Capacity Planning published by O’Reilly.