ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

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

A scalable, distributed Time Series Database.

Collect, aggregate, and visualize a data ecosystem's metadata

JVector: the most advanced embedded vector search engine

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

Scalable identity resolution, entity resolution, data mastering and deduplication using ML

Learn to use Storm!

A fully asynchronous, non-blocking, thread-safe, high-performance HBase client.

Trident-ML : A realtime online machine learning library

Cascading is a feature rich API for defining and executing complex and fault tolerant data processing flows locally or on a cluster.

In-memory Java DataFrame library

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

Schema modelling framework for decentralised domain-driven ownership of data.

Continuous Streaming SQL Queries for Flume

Hadoop Data Integration with various databases, ftp servers, salesforce. Incremental update, dedup, append, merge your data on Hadoop.

HBase-based BI "OLAP-ish" solution

An example of SparkConnect extension.

Secondary indexing for structured and unstructured data in Big Table style databases.