Table of Contents


  1. Preface
  2. Introduction to Informatica Data Engineering Integration
  3. Mappings
  4. Mapping Optimization
  5. Sources
  6. Targets
  7. Transformations
  8. Python Transformation
  9. Data Preview
  10. Cluster Workflows
  11. Profiles
  12. Monitoring
  13. Hierarchical Data Processing
  14. Hierarchical Data Processing Configuration
  15. Hierarchical Data Processing with Schema Changes
  16. Intelligent Structure Models
  17. Blockchain
  18. Stateful Computing
  19. Appendix A: Connections Reference
  20. Appendix B: Data Type Reference
  21. Appendix C: Function Reference

Task Instance Group Options

Task Instance Group Options

The following table describes task instance group options that you can set for an EMR cluster:
Task Instance Type
Task node EC2 instance type.
You can specify any available EC2 instance type.
Default is m4.4xlarge.
Task Instance Count
Number of task EC2 instances to create in the cluster.
Default is 2.
Task Instance Maximum Spot Price
Maximum spot price for task nodes. Setting this property changes the purchasing option of the task instance group to Spot instead of On-demand.
For more information on spot pricing, see the AWS documentation.
Task Auto-Scaling Policy
Optional. Auto-scaling policy for task instances. Type the policy JSON statement here, or provide a path to a file that contains a JSON statement.


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