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Scaling: Not Just About Architecture R

December 25th, 2006

published by Frank Sommers

Summary

At SD Forum 2006, two eBay architects presented an overview how eBay’s
architecture handles a billion page requests a day, and how that
architecture evolved from a few Perl scripts to 15,000 application
instances running in eight data centers. One conclusion from the
presentation is that scaling is only in part a question of architecture.Predictably, the presentation contained a few awe-inspiring statistics, such as:

212,000,000 registered users

1 billion page views per day

26 billion SQL queries and updates per day

Over 2 petabytes of data

$1,590 worth of goods traded per second

Over 1 billion photos

7 languages

99.94% uptime

Scaling: Not Just About Architecture

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