OnDemandCapacityReservationOptions
¶
Source code in docs_src/capo_emr/types/on_demand_capacity_reservation_options.py
capacity_reservation_preference
instance-attribute
¶
capacity_reservation_preference: NotRequired[OnDemandCapacityReservationPreference]
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.
capacity_reservation_resource_group_arn
instance-attribute
¶
capacity_reservation_resource_group_arn: NotRequired[XmlStringMaxLen256]
The ARN of the Capacity Reservation resource group in which to run the instance.
usage_strategy
instance-attribute
¶
usage_strategy: NotRequired[OnDemandCapacityReservationUsageStrategy]
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.