Pre-initialized capacity defaults - Amazon EMR

Amazon EMR Serverless is in preview release and is subject to change. To use EMR Serverless in preview, follow the sign up steps at https://pages.awscloud.com/EMR-Serverless-Preview.html. The only Region that EMR Serverless currently supports is us-east-1, so make sure to set all region parameters to this value. All Amazon S3 buckets used with EMR Serverless must also be created in us-east-1.

Pre-initialized capacity defaults

EMR Serverless configures all applications with the default to run one job at low latency. The defaults are engine-specific and are set as follows:

  • Spark - 3 drivers (4 vCPU, 16 GB memory, 21 GB disk), 9 executors (4 vCPU, 16 GB memory, 21 GB disk)

  • Hive - 3 drivers (2 vCPU, 6 GB memory, and 21 GB disk), 30 Tez tasks (1 vCPU, 6 GB memory, and 21 GB disk)