Why theory CAP in mongodb (CP) and Cassandra (Ap) and rdbms (CA)?

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According to the picture: 1. Why is Mongodb,...(CP) 2. Why is CouchDB,..(AP) 3. Why is Rdbms (CA)

Note: Why Rdbms system partition tolerance does not matter?

picture

thanks

Posted 14-Dec-15 22:02pm

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Mehdi Gholam 15-Dec-15 4:17am

By design.

Richard MacCutchan 15-Dec-15 5:34am

Why not?

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