This document outlines the steps to set up a 3 node Linux cluster on AWS and install Spark for distributed processing: 1. Create 3 Linux instances on AWS and allow all network traffic; generate SSH keys. 2. Configure the instances for SSH access without passwords using the generated keys and install Java. 3. Download and install Spark, configure environment variables, and start all Spark processes and services on the master node to allow distributed processing across the cluster.