You can use AWS IAM authentication when you run a mapping in the EMR cluster. To use AWS IAM authentication in the EMR cluster, you must create the Amazon EMR Role. Create a new Amazon EMR Role or use the default Amazon EMR Role. You must assign the Amazon ERM Role to the EMR cluster for secure access to Amazon S3 resources.
Before you configure IAM Role with EMR cluster, you must install the Informatica Services on an EC2 instance with the IAM Roles assigned.