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Eric Brewer's theorem (1998), or CAP as most of the people refer to it, is one of the most known problems/limitations when designing big systems that require consistency, availability, and partition tolerance, when you only can achieve 2 of the three at the same time.

What are the best todays techniques to overcome this limitation, considering the one can't sacrifice one for the other two?

securecurve
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Current thinking seems to agree that Eventual Consistency is the best you can do, but that it's hard.

Other key words are 'Idempotent Messaging' - which is partly how eventual consistency is achieved.

simon at rcl
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