Zipkin is a distributed tracing system

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

Distributed Graph Database

Stream summarizer and cardinality estimator.

🐘 Elasticsearch real-time search and analytics natively integrated with Hadoop

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

Solandra = Solr + Cassandra

A collection of spouts, bolts, serializers, DSLs, and other goodies to use with Storm

A streaming / online query processing / analytics engine based on Apache Storm

A distributed task queue worker designed for throughput, parallelism, and clustering.

S4 is a general-purpose, distributed, scalable, partially fault-tolerant, pluggable platform that allows programmers to easily develop applications for processing continuous unbounded streams of da…

神.java | Shen for Java 8 Indy. Shen is a portable functional programming language by Mark Tarver.

Modern Cassandra tap for Cascading. Actually works with Cascading 2.0, Cascalog 1.10 and supports CQL collections.