CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.
翻译 - CrateDB是一个分布式SQL数据库,可简化实时存储和分析大量机器数据的过程。
Apache HoraeDB (incubating) is a high-performance, distributed, cloud native time-series database.