MOUNTAIN VIEW, Calif.--(BUSINESS WIRE)--RethinkDB, an open-source scalable database for the real-time web, today announced the release of RethinkDB 2.1. The new version, which was tested in beta by developers over two months, features automatic failover, enabling clusters to automatically select a substitute machine if one fails, giving enterprise-class reliability to mitigate downtime and production errors. Automatic failover takes away the need for human intervention and significantly improve