Firewater is an open source scaleout RDBMS based on column store technology. It allows a cluster of commodity servers or virtualized cloud nodes to be used for fast response times on SQL and OLAP queries over massive datasets. It can also be used to parallelize execution even on a single multi-core node.
The project is being developed under GPL v2 as an extension to the Eigenbase platform, reusing much of the technology from LucidDB. However, Firewater and LucidDB are developed as two separate projects; features in Firewater may not be available in LucidDB, and vice versa.