Author: Jacob Park
An open-source, distributed NewSQL OLTP database based on Google's Spanner to provide CP guarantees and ACID transactions.
An open-source, distributed key-value/columnar store based on Amazon's Dynamo to provide AP guarantees.
An open-source, federated OLAP/analytics database.
An open-source, sharded full-text search engine to provide CP guarantees.
An open-source, distributed publisher/subscriber message queue.
An open-source, distributed graph database which is a fork of TitanDB.
An open-source, sharded BSON-document store to provide CP guarantees.
An open-source, in-memory data structure store.
An open-source, embeddable persistent key-value store based on Google's LevelDB.
An open-source, distributed NewSQL OLTP/OLAP database based on Google's Percolator to provide CP guarantees and ACID transactions.
An open-source, distributed hierarchical key-value store to provide CP guarantees.
An open-source, distributed streaming data-flow engine.
An open-source, distributed general-purpose cluster-computing framework.
An open-source, language-independent columnar memory format for flat and hierarchical data.
An open-source, remote procedure call and data serialization framework.
An open-source, columnar storage format.
An open-source, virtual memory distributed file system.
An open-source, distributed file-system over commodity machines.
A proprietary, distributed file-system with four nines of availability.