CAP Theorem

CAP Theorem - The CAP theorem states that it is impossible to guarantee all 3 features simultaneously in a distributed system:

    * Consistency – all nodes see the same data at the same time
    * Availability – every request receives a response about whether it succeeded or failed
    * Partition tolerance – when parts of the nodes fail, the system continues to operate properly

Now, once you have Big Data, you need a distributed system. At that point, you need to stop thinking of ACID and start deciding which of the 3 properties you can live without (or live with less of).

[Category=Big Data ]

Tsahi Levent-Levi, 14 November 2013 09:18:11, http://bloggeek.me/my-big-data-glossary/