Table of Contents

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  1. Preface
  2. Workflows
  3. Workflow Variables
  4. Workflow Parameters
  5. Cluster Tasks
  6. Command Task
  7. Human Task
  8. Mapping Task
  9. Notification Task
  10. Gateways
  11. Workflow Recovery
  12. Workflow Administration

Developer Workflow Guide

Developer Workflow Guide

Master Instance Group Options

Master Instance Group Options

The following table describes master instance group options that you can set for an EMR cluster:
Property
Description
Master Instance Type
Master node EC2 instance type.
You can specify any available EC2 instance type.
Default is m4.4xlarge.
Master Instance Maximum Spot Price
Maximum spot price for the master node. Setting this property changes the purchasing option of the master instance group to Spot instead of On-demand.

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