Two others are Google Spanner [1] and FoundationDB [2]. [1] see http://highscalability.com/blog/2012/9/24/google-spanners-most-surprising-revelation-nosql-is-o

Two others are Google Spanner [1] and FoundationDB [2]. [1] see http://highscalability.com/blog/2012/9/24/google-spanners-most-surprising-revelation-nosql-is-out-and.html http://highscalability.com/blog/2012/9/24/google-spanners-mo... [2] https://foundationdb.com/acid-claims https://foundationdb.com/acid-claims