AWS Service registry for resilient mid-tier load balancing and failover.

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

Distributed Graph Database

Yahoo! Cloud Serving Benchmark

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

An in-memory file system for Java 8+

A Graph Traversal Language (no longer active - see Apache TinkerPop)

GS Collections has been migrated to the Eclipse Foundation, re-branded as Eclipse Collections. https://www.eclipse.org/collections/

Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.

A platform for visualization and real-time monitoring of data workflows

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

Kuromoji is a self-contained and very easy to use Japanese morphological analyzer designed for search

WE HAVE MOVED to Apache Incubator. https://cwiki.apache.org/FLUME/ . Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log…

Mirror of Apache Giraph

Logging framework for fast asynchronous logging

Storm-yarn enables Storm clusters to be deployed into machines managed by Hadoop YARN.

A simple IRB application for JRuby on Android

Java version of LIBLINEAR

GoldenOrb is an open-source implementation of Pregel, Google's graph processing framework

Fjord, F# programming language for the JVM.

Header Compression for HTTP/2

Criteo/Kaggle Competition of CTR prediction

Zhejiang University Online Judge - An online judge which allows people to solve algorithm problems online.

Reference Implementation of Romanov's Polynomial Algorithm for Boolean 3-SAT Problem

Reference Implementation of IsisATP from the Open Payments Alliance

A simple benchmark of noSQL databases for both read/update and MapReduce performances

Code for the CVPR'19 paper "Explore-Exploit Graph Traversal for Image Retrieval"

(obsoleted) an implementation of label propagation in apache giraph

(obsoleted) java implementation of labelpropagation