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linkedin / pinot

A realtime distributed OLAP datastore

java realtime distributed olap datastore

DataBrewery / cubes

Light-weight Python OLAP framework. Docs: http://cubes.readthedocs.io/en/latest/

python light-weight olap framework multi-dimensional data

velvia / FiloDB

High-performance distributed analytical database + Spark SQL queries + built for streaming

scala distributed columnar versioned olap database