Apache Spark 3 Requirements

The following sections describe software and hardware requirements for Spark 3.

Software requirements

Each cluster host must have the following software installed:

JDK 8 or JDK 11. Cloudera recommends using JDK 8, as most testing has been done with JDK 8. Remove other JDK versions from all cluster and gateway hosts to ensure proper operation.
Scala 2.12
Python 3.7 and higher

Hardware requirements

Spark 3 has no specific hardware requirements on top of what is required for Cloudera Runtime deployments.