Request Syntax Request Parameters Response Elements Errors See Also

PutManagedScalingPolicy

Creates or updates a managed scaling policy for an Amazon EMR cluster. The managed scaling policy defines the limits for resources, such as Amazon EC2 instances that can be added or terminated from a cluster. The policy only applies to the core and task nodes. The master node cannot be scaled after initial configuration.

Request Syntax


{
   "ClusterId": "string",
   "ManagedScalingPolicy": { 
      "ComputeLimits": { 
         "MaximumCapacityUnits": number,
         "MaximumCoreCapacityUnits": number,
         "MaximumOnDemandCapacityUnits": number,
         "MinimumCapacityUnits": number,
         "UnitType": "string"
      },
      "ScalingStrategy": "string",
      "UtilizationPerformanceIndex": number
   }
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

ClusterId

Specifies the ID of an Amazon EMR cluster where the managed scaling policy is attached.

Type: String

Required: Yes

ManagedScalingPolicy

Specifies the constraints for the managed scaling policy.

Type: ManagedScalingPolicy object

Required: Yes

Response Elements

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

Errors

For information about the errors that are common to all actions, see Common Errors.