Using the Bootstrap Installer

The Big Data Protector on Amazon EMR enables cluster creation using a bootstrap action. This action enables:

• configuration of cluster instances
• installation of custom and additional software
• setting up of the environment variables

Bootstrap actions are scripts that run on cluster instances after they are launched. These scripts installs the specified applications during cluster creation and before the cluster nodes start processing data. To create a bootstrap action, can specify the script when creating the cluster in any one of the following methods:

• Amazon EMR console - pass the location of the script in the Bootstrap actions section.
• AWS CLI - pass the location of the script to the --bootstrap-actions parameter.
• API

In this method of cluster creation, the nodes are automatically scaled depending on the workload. In case of instances where the workloads are minimal for a node, Amazon decomissions the node to balance the workload optimally.