Class: AWSCDK::EMR::CfnCluster::InstanceFleetConfigProperty

Inherits:
Jsii::Struct
  • Object
show all
Defined in:
emr/cfn_cluster.rb

Overview

Use InstanceFleetConfig to define instance fleets for an EMR cluster.

A cluster can not use both instance fleets and instance groups. For more information, see Configure Instance Fleets in the Amazon EMR Management Guide .

The instance fleet configuration is available only in Amazon EMR versions 4.8.0 and later, excluding 5.0.x versions.

See Also:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(instance_type_configs: nil, launch_specifications: nil, name: nil, resize_specifications: nil, target_on_demand_capacity: nil, target_spot_capacity: nil) ⇒ InstanceFleetConfigProperty

Returns a new instance of InstanceFleetConfigProperty.

Parameters:



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# File 'emr/cfn_cluster.rb', line 1515

def initialize(instance_type_configs: nil, launch_specifications: nil, name: nil, resize_specifications: nil, target_on_demand_capacity: nil, target_spot_capacity: nil)
  @instance_type_configs = instance_type_configs
  Jsii::Type.check_type(@instance_type_configs, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImNvbGxlY3Rpb24iOnsiZWxlbWVudHR5cGUiOnsidW5pb24iOnsidHlwZXMiOlt7ImZxbiI6ImF3cy1jZGstbGliLklSZXNvbHZhYmxlIn0seyJmcW4iOiJhd3MtY2RrLWxpYi5hd3NfZW1yLkNmbkNsdXN0ZXIuSW5zdGFuY2VUeXBlQ29uZmlnUHJvcGVydHkifV19fSwia2luZCI6ImFycmF5In19XX19")), "instanceTypeConfigs") unless @instance_type_configs.nil?
  @launch_specifications = launch_specifications.is_a?(Hash) ? ::AWSCDK::EMR::CfnCluster::InstanceFleetProvisioningSpecificationsProperty.new(**launch_specifications.transform_keys(&:to_sym)) : launch_specifications
  Jsii::Type.check_type(@launch_specifications, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImZxbiI6ImF3cy1jZGstbGliLmF3c19lbXIuQ2ZuQ2x1c3Rlci5JbnN0YW5jZUZsZWV0UHJvdmlzaW9uaW5nU3BlY2lmaWNhdGlvbnNQcm9wZXJ0eSJ9XX19")), "launchSpecifications") unless @launch_specifications.nil?
  @name = name
  Jsii::Type.check_type(@name, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "name") unless @name.nil?
  @resize_specifications = resize_specifications.is_a?(Hash) ? ::AWSCDK::EMR::CfnCluster::InstanceFleetResizingSpecificationsProperty.new(**resize_specifications.transform_keys(&:to_sym)) : resize_specifications
  Jsii::Type.check_type(@resize_specifications, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImZxbiI6ImF3cy1jZGstbGliLmF3c19lbXIuQ2ZuQ2x1c3Rlci5JbnN0YW5jZUZsZWV0UmVzaXppbmdTcGVjaWZpY2F0aW9uc1Byb3BlcnR5In1dfX0=")), "resizeSpecifications") unless @resize_specifications.nil?
  @target_on_demand_capacity = target_on_demand_capacity
  Jsii::Type.check_type(@target_on_demand_capacity, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJudW1iZXIifQ==")), "targetOnDemandCapacity") unless @target_on_demand_capacity.nil?
  @target_spot_capacity = target_spot_capacity
  Jsii::Type.check_type(@target_spot_capacity, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJudW1iZXIifQ==")), "targetSpotCapacity") unless @target_spot_capacity.nil?
end

Instance Attribute Details

#instance_type_configs ⇒ AWSCDK::IResolvable, ... (readonly)

The instance type configurations that define the Amazon EC2 instances in the instance fleet.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 1534

def instance_type_configs
  @instance_type_configs
end

#launch_specifications ⇒ AWSCDK::IResolvable, ... (readonly)

The launch specification for the instance fleet.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 1539

def launch_specifications
  @launch_specifications
end

#name ⇒ String? (readonly)

The friendly name of the instance fleet.

Returns:

  • (String, nil)

See Also:



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# File 'emr/cfn_cluster.rb', line 1544

def name
  @name
end

#resize_specifications ⇒ AWSCDK::IResolvable, ... (readonly)

The resize specification for the instance fleet.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 1549

def resize_specifications
  @resize_specifications
end

#target_on_demand_capacity ⇒ Numeric? (readonly)

The target capacity of On-Demand units for the instance fleet, which determines how many On-Demand instances to provision.

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.

Returns:

  • (Numeric, nil)

See Also:



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# File 'emr/cfn_cluster.rb', line 1558

def target_on_demand_capacity
  @target_on_demand_capacity
end

#target_spot_capacity ⇒ Numeric? (readonly)

The target capacity of Spot units for the instance fleet, which determines how many Spot instances to provision.

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.

Returns:

  • (Numeric, nil)

See Also:



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# File 'emr/cfn_cluster.rb', line 1567

def target_spot_capacity
  @target_spot_capacity
end

Class Method Details

.jsii_properties ⇒ Object 



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# File 'emr/cfn_cluster.rb', line 1569

def self.jsii_properties
  {
    :instance_type_configs => "instanceTypeConfigs",
    :launch_specifications => "launchSpecifications",
    :name => "name",
    :resize_specifications => "resizeSpecifications",
    :target_on_demand_capacity => "targetOnDemandCapacity",
    :target_spot_capacity => "targetSpotCapacity",
  }
end

Instance Method Details

#to_jsii ⇒ Object 



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# File 'emr/cfn_cluster.rb', line 1580

def to_jsii
  result = {}
  result.merge!({
    "instanceTypeConfigs" => @instance_type_configs,
    "launchSpecifications" => @launch_specifications,
    "name" => @name,
    "resizeSpecifications" => @resize_specifications,
    "targetOnDemandCapacity" => @target_on_demand_capacity,
    "targetSpotCapacity" => @target_spot_capacity,
  })
  result.compact
end