Spark

This is a simple Java and Kotlin web application microframework whose main goal is rapid development by providing you with expressive syntax that keeps the boilerplate to a minimum. In fact, Spark allows you to leverage the power of the JVM without having to dive into verbose code.

Apache Spark is an open-source unified analytics engine for large-scale data processing. Spark provides an interface for programming entire clusters with implicit data parallelism and fault tolerance.