Ecosystems:
Java
KDatalog - Kafka as a Datalog Engine
KDatalog is a distributed Datalog engine using Apache Kafka. It is implemented as a Pregel algorithm in Kafka Graphs, and is adapted from the Apache Giraph implementation of Datalog on Pregel from the work "Parallel Datalog on Pregel" by Matthias Maiterth.
For more information, see KDatalog: Kafka as a Datalog Engine.