Elastic Map Reduce is a service of Amazon Web Service (AWS) for processing large volumes of data using open source technologies such as Spark. EMR integrates easily with other AWS-based services such as S3, IAM, Glue, and more.

EMR is enabled by default in your workspace. When you run a job using the Spark option, the job is provisioned for execution on an EMR cluster.

Tip: In the Run Job page, select Spark to run the job on this running environment when the has been integrated with it.

For more information, see https://aws.amazon.com/emr.