TargetCapacitySpecification - Amazon Elastic Compute Cloud

TargetCapacitySpecification

The number of units to request. You can choose to set the target capacity in terms of instances or a performance characteristic that is important to your application workload, such as vCPUs, memory, or I/O. If the request type is maintain, you can specify a target capacity of 0 and add capacity later.

You can use the On-Demand Instance MaxTotalPrice parameter, the Spot Instance MaxTotalPrice, or both to ensure that your fleet cost does not exceed your budget. If you set a maximum price per hour for the On-Demand Instances and Spot Instances in your request, EC2 Fleet will launch instances until it reaches the maximum amount that you're willing to pay. When the maximum amount you're willing to pay is reached, the fleet stops launching instances even if it hasn’t met the target capacity. The MaxTotalPrice parameters are located in OnDemandOptions and SpotOptions.

Contents

defaultTargetCapacityType

The default TotalTargetCapacity, which is either Spot or On-Demand.

Type: String

Valid Values: spot | on-demand

Required: No

onDemandTargetCapacity

The number of On-Demand units to request. If you specify a target capacity for Spot units, you cannot specify a target capacity for On-Demand units.

Type: Integer

Required: No

spotTargetCapacity

The maximum number of Spot units to launch. If you specify a target capacity for On-Demand units, you cannot specify a target capacity for Spot units.

Type: Integer

Required: No

totalTargetCapacity

The number of units to request, filled using DefaultTargetCapacityType.

Type: Integer

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: