I like how they choose to trade off consistency for speed.
It's not like Facebook is a mission-critical application that requires all data to be 100% consistent. If an update to a user's photo album isn't immediately viewable by all other users, it isn't that big of a deal -- most users won't even notice, and the speed increases over MySql were dramatic.
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[ 3.2 ms ] story [ 16.6 ms ] threadIt's not like Facebook is a mission-critical application that requires all data to be 100% consistent. If an update to a user's photo album isn't immediately viewable by all other users, it isn't that big of a deal -- most users won't even notice, and the speed increases over MySql were dramatic.