rENIAC’s Distributed Data Engine accelerates the Apache Cassandra NoSQL database by both increasing throughput and reducing latency. Facebook originally developed the Apache Cassandra distributed NoSQL database to power its inbox search feature and released it to the open-source community more than a decade ago, where it has continued to flourish. The distributed Cassandra database application handles large amounts of data across many commodity servers while providing high availability. Cassandra’s distributed nature makes single-point failures impossible.
Read more here