Free and Open Source, Distributed, RESTful Search Engine

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Netty project - an event-driven asynchronous network application framework

Mirror of Apache Kafka

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

a fast, scalable, multi-language and extensible build system

Zipkin is a distributed tracing system

Arduino IDE 1.x

Graphs for Everyone

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

Interview questions

Change data capture for a variety of databases. Please log issues at https://issues.redhat.com/browse/DBZ.

The Clojure programming language

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

Apache Cassandra®

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

Flyway by Redgate • Database Migrations Made Easy.

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Apache Storm

Code for Quartz Scheduler

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

configuration library for JVM languages using HOCON files

AI + Data, online. https://vespa.ai

Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.

Distributed Graph Database

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID…

Fault tolerance and resilience patterns for the JVM

Micro second messaging that stores everything to disk

Apache Avro is a data serialization system.