Apache Cassandra™ is an open source distributed NoSQL database. It is designed to store data across many nodes on commodity servers. Cassandra is highly scalable and has no single point of failure for high reliability.
Azul Zing® allows Cassandra to run smoothly, free of Java-related performance glitches and hangs. Zing is an innovative JVM that removes garbage collection as an issue. With Zing your Cassandra deployment can have great response times all the time, without GC pauses, node hangs or out of memory errors, regardless of load or object allocation rates.