Web-scale computing means running hundreds of thousands of servers. It requires a fundamentally different approach from smaller environments. Consistent server hardware and datacenter plans, as well as consistent and simple configurations, are essential. Everything is designed to expect and embrace failure without human intervention. Operations must be largely autonomous. Software must assume crashes. Development, test, and deployment must have integrated and automated solutions.
This article offers a brief survey of many of the techniques so well known to those working at Web scale and yet frequently surprising to others.
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