interface OnDemandCapacityReservationOptionsProperty

Language	Type name
.NET	Amazon.CDK.Mixins.Preview.AWS.EMR.Mixins.CfnClusterPropsMixin.OnDemandCapacityReservationOptionsProperty
Go	github.com/aws/aws-cdk-go/awscdkmixinspreview/v2/awsemr/mixins#CfnClusterPropsMixin_OnDemandCapacityReservationOptionsProperty
Java	software.amazon.awscdk.mixins.preview.services.emr.mixins.CfnClusterPropsMixin.OnDemandCapacityReservationOptionsProperty
Python	aws_cdk.mixins_preview.aws_emr.mixins.CfnClusterPropsMixin.OnDemandCapacityReservationOptionsProperty
TypeScript	@aws-cdk/mixins-preview » aws_emr » mixins » CfnClusterPropsMixin » OnDemandCapacityReservationOptionsProperty

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

See also: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-ondemandcapacityreservationoptions.html

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { mixins as emr_mixins } from '@aws-cdk/mixins-preview/aws-emr';
const onDemandCapacityReservationOptionsProperty: emr_mixins.CfnClusterPropsMixin.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.

See also: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-ondemandcapacityreservationoptions.html#cfn-emr-cluster-ondemandcapacityreservationoptions-capacityreservationpreference

---

capacityReservationResourceGroupArn?

Type: string (optional)

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

See also: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-ondemandcapacityreservationoptions.html#cfn-emr-cluster-ondemandcapacityreservationoptions-capacityreservationresourcegrouparn

---

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.

See also: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-ondemandcapacityreservationoptions.html#cfn-emr-cluster-ondemandcapacityreservationoptions-usagestrategy