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The Myth of Auto Scaling as a Capacity Planning Approach

A quite old, but very educative post by James Golick dissecting the mythical extra server capacity:

There’s this idea floating around that we can scale out our data services “just in time”. Proponents of cloud computing frequently tout this as an advantage of such a platform. Got a load spike? No problem, just spin up a few new instances to handle the demand. It’s a great sounding story, but sadly, things don’t quite work that way.

This is the Mythical Man-Month of the IT department.

John Allspaw

Original title and link: The Myth of Auto Scaling as a Capacity Planning Approach (NoSQL database©myNoSQL)

via: http://jamesgolick.com/2010/10/27/we-are-experiencing-too-much-load-lets-add-a-new-server..html