Apache Spark - A unified analytics engine for large-scale data processing

CMAK is a tool for managing Apache Kafka clusters

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

Rocket Chip Generator

In-memory dimensional time series database.

A distributed, fault-tolerant graph database

Html Content / Article Extractor in Scala - open sourced from Gravity Labs

GeoMesa is a suite of tools for working with big geo-spatial data in a distributed fashion.

A JVM written in Scala

HouseMD is an awesome diagnosing tool better than BTrace

Realtime Data Store Based on Akka