Interface ICfnInstanceFleetConfigProps
Properties for defining a CfnInstanceFleetConfig.
Namespace: Amazon.CDK.AWS.EMR
Assembly: Amazon.CDK.AWS.EMR.dll
Syntax (csharp)
public interface ICfnInstanceFleetConfigPropsSyntax (vb)
Public Interface ICfnInstanceFleetConfigPropsRemarks
ExampleMetadata: fixture=_generated
Examples
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
using Amazon.CDK.AWS.EMR;
ConfigurationProperty configurationProperty_;
CfnInstanceFleetConfigProps cfnInstanceFleetConfigProps = new CfnInstanceFleetConfigProps {
ClusterId = "clusterId",
InstanceFleetType = "instanceFleetType",
// the properties below are optional
InstanceTypeConfigs = new [] { new InstanceTypeConfigProperty {
InstanceType = "instanceType",
// the properties below are optional
BidPrice = "bidPrice",
BidPriceAsPercentageOfOnDemandPrice = 123,
Configurations = new [] { new ConfigurationProperty {
Classification = "classification",
ConfigurationProperties = new Dictionary<string, string> {
{ "configurationPropertiesKey", "configurationProperties" }
},
Configurations = new [] { configurationProperty_ }
} },
CustomAmiId = "customAmiId",
EbsConfiguration = new EbsConfigurationProperty {
EbsBlockDeviceConfigs = new [] { new EbsBlockDeviceConfigProperty {
VolumeSpecification = new VolumeSpecificationProperty {
SizeInGb = 123,
VolumeType = "volumeType",
// the properties below are optional
Iops = 123
},
// the properties below are optional
VolumesPerInstance = 123
} },
EbsOptimized = false
},
WeightedCapacity = 123
} },
LaunchSpecifications = new InstanceFleetProvisioningSpecificationsProperty {
OnDemandSpecification = new OnDemandProvisioningSpecificationProperty {
AllocationStrategy = "allocationStrategy"
},
SpotSpecification = new SpotProvisioningSpecificationProperty {
TimeoutAction = "timeoutAction",
TimeoutDurationMinutes = 123,
// the properties below are optional
AllocationStrategy = "allocationStrategy",
BlockDurationMinutes = 123
}
},
Name = "name",
TargetOnDemandCapacity = 123,
TargetSpotCapacity = 123
};Synopsis
Properties
| ClusterId | The unique identifier of the EMR cluster. |
| InstanceFleetType | The node type that the instance fleet hosts. |
| InstanceTypeConfigs |
|
| LaunchSpecifications | The launch specification for the instance fleet. |
| Name | The friendly name of the instance fleet. |
| TargetOnDemandCapacity | The target capacity of On-Demand units for the instance fleet, which determines how many On-Demand instances to provision. |
| TargetSpotCapacity | The target capacity of Spot units for the instance fleet, which determines how many Spot instances to provision. |
Properties
ClusterId
The unique identifier of the EMR cluster.
string ClusterId { get; }Property Value
System.String
Remarks
InstanceFleetType
The node type that the instance fleet hosts.
string InstanceFleetType { get; }Property Value
System.String
Remarks
InstanceTypeConfigs
InstanceTypeConfigs determine the EC2 instances that Amazon EMR attempts to provision to fulfill On-Demand and Spot target capacities.
virtual object InstanceTypeConfigs { get; }Property Value
System.Object
Remarks
The instance fleet configuration is available only in Amazon EMR versions 4.8.0 and later, excluding 5.0.x versions.
LaunchSpecifications
The launch specification for the instance fleet.
virtual object LaunchSpecifications { get; }Property Value
System.Object
Remarks
Name
The friendly name of the instance fleet.
virtual string Name { get; }Property Value
System.String
Remarks
TargetOnDemandCapacity
The target capacity of On-Demand units for the instance fleet, which determines how many On-Demand instances to provision.
virtual Nullable<double> TargetOnDemandCapacity { get; }Property Value
System.Nullable<System.Double>
Remarks
When the instance fleet launches, Amazon EMR tries to provision On-Demand instances as specified by InstanceTypeConfig . Each instance configuration has a specified WeightedCapacity . When an On-Demand instance is provisioned, the WeightedCapacity units count toward the target capacity. Amazon EMR provisions instances until the target capacity is totally fulfilled, even if this results in an overage. For example, if there are 2 units remaining to fulfill capacity, and Amazon EMR can only provision an instance with a WeightedCapacity of 5 units, the instance is provisioned, and the target capacity is exceeded by 3 units.
If not specified or set to 0, only Spot instances are provisioned for the instance fleet using TargetSpotCapacity . At least one of TargetSpotCapacity and TargetOnDemandCapacity should be greater than 0. For a master instance fleet, only one of TargetSpotCapacity and TargetOnDemandCapacity can be specified, and its value must be 1.
TargetSpotCapacity
The target capacity of Spot units for the instance fleet, which determines how many Spot instances to provision.
virtual Nullable<double> TargetSpotCapacity { get; }Property Value
System.Nullable<System.Double>
Remarks
When the instance fleet launches, Amazon EMR tries to provision Spot instances as specified by InstanceTypeConfig . Each instance configuration has a specified WeightedCapacity . When a Spot instance is provisioned, the WeightedCapacity units count toward the target capacity. Amazon EMR provisions instances until the target capacity is totally fulfilled, even if this results in an overage. For example, if there are 2 units remaining to fulfill capacity, and Amazon EMR can only provision an instance with a WeightedCapacity of 5 units, the instance is provisioned, and the target capacity is exceeded by 3 units.
If not specified or set to 0, only On-Demand instances are provisioned for the instance fleet. At least one of TargetSpotCapacity and TargetOnDemandCapacity should be greater than 0. For a master instance fleet, only one of TargetSpotCapacity and TargetOnDemandCapacity can be specified, and its value must be 1.