interface OnDemandCapacityReservationOptionsProperty

Language	Type name
.NET	`Amazon.CDK.AWS.EMR.CfnInstanceFleetConfig.OnDemandCapacityReservationOptionsProperty`
Go	`github.com/aws/aws-cdk-go/awscdk/v2/awsemr#CfnInstanceFleetConfig_OnDemandCapacityReservationOptionsProperty`
Java	`software.amazon.awscdk.services.emr.CfnInstanceFleetConfig.OnDemandCapacityReservationOptionsProperty`
Python	`aws_cdk.aws_emr.CfnInstanceFleetConfig.OnDemandCapacityReservationOptionsProperty`
TypeScript	`aws-cdk-lib` » `aws_emr` » `CfnInstanceFleetConfig` » `OnDemandCapacityReservationOptionsProperty`

Describes the strategy for using unused Capacity Reservations for fulfilling On-Demand capacity.

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_emr as emr } from 'aws-cdk-lib';
const onDemandCapacityReservationOptionsProperty: emr.CfnInstanceFleetConfig.OnDemandCapacityReservationOptionsProperty = {
  capacityReservationPreference: 'capacityReservationPreference',
  capacityReservationResourceGroupArn: 'capacityReservationResourceGroupArn',
  usageStrategy: 'usageStrategy',
};

Properties

Name	Type	Description
capacityReservationPreference?	`string`	Indicates the instance's Capacity Reservation preferences. Possible preferences include:.
capacityReservationResourceGroupArn?	`string`	The ARN of the Capacity Reservation resource group in which to run the instance.
usageStrategy?	`string`	Indicates whether to use unused Capacity Reservations for fulfilling On-Demand capacity.

capacityReservationPreference?

Type: string (optional)

Indicates the instance's Capacity Reservation preferences. Possible preferences include:.

open - The instance can run in any open Capacity Reservation that has matching attributes (instance type, platform, Availability Zone).
none - The instance avoids running in a Capacity Reservation even if one is available. The instance runs as an On-Demand Instance.

capacityReservationResourceGroupArn?

Type: string (optional)

The ARN of the Capacity Reservation resource group in which to run the instance.

usageStrategy?

Type: string (optional)

Indicates whether to use unused Capacity Reservations for fulfilling On-Demand capacity.

If you specify use-capacity-reservations-first , the fleet uses unused Capacity Reservations to fulfill On-Demand capacity up to the target On-Demand capacity. If multiple instance pools have unused Capacity Reservations, the On-Demand allocation strategy ( lowest-price ) is applied. If the number of unused Capacity Reservations is less than the On-Demand target capacity, the remaining On-Demand target capacity is launched according to the On-Demand allocation strategy ( lowest-price ).

If you do not specify a value, the fleet fulfills the On-Demand capacity according to the chosen On-Demand allocation strategy.