PredictionIO, a machine learning server for developers and ML engineers.

CMAK is a tool for managing Apache Kafka clusters

A fault tolerant, protocol-agnostic RPC system

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs

Deequ is a library built on top of Apache Spark for defining "unit tests for data", which measure data quality in large datasets.

A Scala API for Cascading

Compositional, streaming I/O library for Scala

A library for building reliable, scalable and distributed event-sourced applications in Scala

Scala combinator library for working with binary data

[PROJECT IS NO LONGER MAINTAINED] Code examples that show to integrate Apache Kafka 0.8+ with Apache Storm 0.9+ and Apache Spark Streaming 1.1+, while using Apache Avro as the data serialization fo…

MySQL binary log consumer with the ability to act on changed rows and publish changes to different systems with emphasis on Apache Kafka.

Advanced Analytics Engine for NoSQL Data

Chat example app using Server Sent Events plus REST calls. Scala, Play Framework 2.3, AngularJS or React (alternatively).

friendly little parsers

Ordasity is Boundary's library for building stateful clustered services on the JVM.

Quick up and running using Scala for Apache Kafka

Event Store JVM Client

A stream processing library for Scala

Scalang is a scala wrapper that makes it easy to write services that interface with erlang.

Write your Spark data to Kafka seamlessly

Wayeb is a Complex Event Processing and Forecasting (CEP/F) engine written in Scala.

DSL in Scala for Constraint Solving with Z3 SMT Solver

Consul API for scala

Protobuf serialization support for Apache Flink

Composable concurrent processing types.

Document clustering

Complex Event Processing using Apache Flink for service health monitoring