Arnon Rotem-Gal-Oz as posted about
database denormalization on internet-scale sites (such as Amazon, eBay, Flickr , etc...).
The
A&D 2007 : The eBay Architecture (Randy Shoup & Dan Pritchett) is triggering the discussion.
Examples of the denormalization:
- disabling transactions;
- denormalizing data;
- [not circumscripted do DB] SOAing the operations by business classes;
Data denormalization is not news to us - I remember back in college to learn to normalize to the Nth Codd normal form, and then to denormalise if necessary. The fact that 3-tier arquitectures doesn't guarantee scalability is not news either. What really impresses me is the option to drop ACID transactions.
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