It basically depends on 2 things: 1) What kind of API do you need? It'll have to be simpler than SQL, likely key-value with secondary indices managed at eith

It basically depends on 2 things: 1) What kind of API do you need? It'll have to be simpler than SQL, likely key-value with secondary indices managed at either the API layer or application layer. 2) Which 2 of Consistency, Availability and Partition Tolerance do you need? Is "gets there eventually" enough or do you need "can read it right after I write it" guarantees?