Use the AWS Management Console to configure managed scaling - Amazon EMR

Use the AWS Management Console to configure managed scaling

When you create a cluster, you can configure managed scaling using either quick options or advanced cluster configuration options. You can also create or modify a managed scaling policy for a running cluster by modifying the Managed Scaling settings on the Summary or Hardware page.

To use quick options to configure managed scaling when you create a cluster

  1. Open the Amazon EMR console, choose Create cluster and open Create Cluster - Quick options.

  2. In the Hardware configuration section next to Cluster scaling, choose the checkbox to enable scale cluster nodes based on workload.

    
							Managed Scaling Quick Options
  3. Under Core and task units, specify the Minimum and Maximum number of core and task instances.

To use the advanced option to configure managed scaling when you create a cluster

  1. In the Amazon EMR console, select Create cluster, select Go to advanced options, choose options for Step 1: Software and Steps, and then go to Step 2: Hardware Configuration.

  2. In the Cluster composition section, select Instance fleets or Uniform instance groups.

  3. Under Cluster scaling, select Enable cluster scaling. Then select Use EMR-managed scaling. Under Core and task units, specify the Minimum and Maximum number of instances or instance fleet units, the On-Demand limit, and Maximum Core Node count.

    
							Managed Scaling Advanced Option

    For clusters composed of instance groups, you can also choose Create a custom automatic scaling policy if you want to define custom automatic scaling policies for each instance group. For more information, see Using automatic scaling with a custom policy for instance groups .

To modify an existing cluster

  1. Open the Amazon EMR console, select your cluster from the cluster list, and then choose the Hardware tab.

  2. In the Cluster scaling section, select Edit for EMR managed scaling.

    
							Modifying Console options for cluster scaling
  3. In the Cluster scaling section, specify new values for the Minimum and Maximum number of instances and the On-Demand limit.