February 2, 2012
yes. we use it currently in production for storing of votes submitted by users to all of our social net's uploaded photos. Running 16 nodes cluster with total of 10T of data, 20bi rows also currently developing a new solution for Like button storage, based on cassandra too.
No answer yet
Lead platform developer at Odnoklassniki.ru Researching, developing and architecting technology platform of odnoklassniki.ru to be able to keep up and scale under the heavy load.