- Apache Drill https://drill.apache.org/ Schema-free, low latency SQL Engine for Hadoop, NoSQL and Cloud, It’s backed up at enterprise level by MapR
- Apache Kylin http://kylin.apache.org/ is a Distributed Analytics Engine to provide OLAP on Hadoop supporting large datasets, original made by eBay Inc.
- Apache Flink https://flink.apache.org/ is a distributed stream and batch processing platform. The creators of Flink have company Data Artisans.
- Facebook Presto https://prestodb.io/ Presto is an open source distributed query engine. It’s backed up by Teradata – http://www.teradata.com/PRESTO/