CrateDB

CrateDB is an open source SQL database with a ground-breaking distributed design:

Uses SQL to process any type of data, structured or unstructured, Performs distributed SQL queries at realtime speed, even JOINs and aggregates Makes scaling simple Customers often use CrateDB to store and query machine data. This is because CrateDB makes it easy and economical to handle the velocity, volume, and diversity of machine and log data. In fact, customers have reported CrateDB ingesting millions of data points per second, while also querying terabytes of data in real time…20x faster than their previous database and on 75% less database hardware.