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Oryx 2: Lambda architecture on Apache Spark, Apache Kafka for real-time large scale machine learning

Fast scalable time series database

Elassandra = Elasticsearch + Apache Cassandra

Blazingly fast analytics database that will rapidly devour all of your data.

Build data pipelines with SQL and Python, ingest data from different sources, add quality checks, and build end-to-end flows.

Dynamic HTML5 visualization

Bloomberg's distributed RDBMS

AgensGraph, a transactional graph database based on PostgreSQL

HiBench is a big data benchmark suite.

In-memory NoSQL database with ACID transactions, Raft consensus, and Redis API

HyperDex is a scalable, searchable key-value store

An open source event analytics platform

Memcache on SSD

SQL-based streaming analytics platform at scale

Twitter's collection of LZO and Protocol Buffer-related Hadoop, Pig, Hive, and HBase code.

EliasDB a graph-based database.

Project SnappyData - memory optimized analytics database, based on Apache Spark™ and Apache Geode™. Stream, Transact, Analyze, Predict in one cluster

Bistro is a flexible distributed scheduler, a high-performance framework supporting multiple paradigms while retaining ease of configuration, management, and monitoring.

An Alert Management Web Application

Twemcache is the Twitter Memcached

CPU and GPU-accelerated Machine Learning Library

Fast multilayer perceptron neural network library for iOS and Mac OS X

A Bayesian database table for querying the probable implications of data as easily as SQL databases query the data itself. New implementation in http://github.com/probcomp/bayeslite

Fast and reliable message broker built on top of Kafka.

Time-series database

Netflix's distributed Data Pipeline

📈 Collect customer event data from your apps. (Note that this project only includes the API collector, not the visualization platform)

Build platforms that flexibly mix SQL, batch, and stream processing paradigms

A probabilistic data structure service and storage

GhostDB is a distributed, in-memory, general purpose key-value data store that delivers microsecond performance at any scale.