Class: AWSCDK::StepFunctionsTasks::EMRCreateCluster::SimpleScalingPolicyConfigurationProperty

Inherits:
Jsii::Struct
  • Object
show all
Defined in:
step_functions_tasks/emr_create_cluster.rb

Overview

An automatic scaling configuration, which describes how the policy adds or removes instances, the cooldown period, and the number of EC2 instances that will be added each time the CloudWatch metric alarm condition is satisfied.

See Also:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(scaling_adjustment:, adjustment_type: nil, cool_down: nil) ⇒ SimpleScalingPolicyConfigurationProperty

Returns a new instance of SimpleScalingPolicyConfigurationProperty.

Parameters:

  • scaling_adjustment (Numeric) —

    The amount by which to scale in or scale out, based on the specified AdjustmentType.

  • adjustment_type (AWSCDK::StepFunctionsTasks::EMRCreateCluster::ScalingAdjustmentType, nil) (defaults to: nil) —

    The way in which EC2 instances are added (if ScalingAdjustment is a positive number) or terminated (if ScalingAdjustment is a negative number) each time the scaling activity is triggered.

  • cool_down (Numeric, nil) (defaults to: nil) —

    The amount of time, in seconds, after a scaling activity completes before any further trigger-related scaling activities can start.



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# File 'step_functions_tasks/emr_create_cluster.rb', line 2533

def initialize(scaling_adjustment:, adjustment_type: nil, cool_down: nil)
  @scaling_adjustment = scaling_adjustment
  Jsii::Type.check_type(@scaling_adjustment, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJudW1iZXIifQ==")), "scalingAdjustment")
  @adjustment_type = adjustment_type
  Jsii::Type.check_type(@adjustment_type, JSON.parse(Base64.strict_decode64("eyJmcW4iOiJhd3MtY2RrLWxpYi5hd3Nfc3RlcGZ1bmN0aW9uc190YXNrcy5FbXJDcmVhdGVDbHVzdGVyLlNjYWxpbmdBZGp1c3RtZW50VHlwZSJ9")), "adjustmentType") unless @adjustment_type.nil?
  @cool_down = cool_down
  Jsii::Type.check_type(@cool_down, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJudW1iZXIifQ==")), "coolDown") unless @cool_down.nil?
end

Instance Attribute Details

#adjustment_type ⇒ AWSCDK::StepFunctionsTasks::EMRCreateCluster::ScalingAdjustmentType? (readonly)

Note:

Default: - None

The way in which EC2 instances are added (if ScalingAdjustment is a positive number) or terminated (if ScalingAdjustment is a negative number) each time the scaling activity is triggered.

Returns:



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# File 'step_functions_tasks/emr_create_cluster.rb', line 2554

def adjustment_type
  @adjustment_type
end

#cool_down ⇒ Numeric? (readonly)

Note:

Default: 0

The amount of time, in seconds, after a scaling activity completes before any further trigger-related scaling activities can start.

Returns:

  • (Numeric, nil) 


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# File 'step_functions_tasks/emr_create_cluster.rb', line 2559

def cool_down
  @cool_down
end

#scaling_adjustment ⇒ Numeric (readonly)

The amount by which to scale in or scale out, based on the specified AdjustmentType.

A positive value adds to the instance group's EC2 instance count while a negative number removes instances. If AdjustmentType is set to EXACT_CAPACITY, the number should only be a positive integer.

Returns:

  • (Numeric) 


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# File 'step_functions_tasks/emr_create_cluster.rb', line 2549

def scaling_adjustment
  @scaling_adjustment
end

Class Method Details

.jsii_properties ⇒ Object 



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# File 'step_functions_tasks/emr_create_cluster.rb', line 2561

def self.jsii_properties
  {
    :scaling_adjustment => "scalingAdjustment",
    :adjustment_type => "adjustmentType",
    :cool_down => "coolDown",
  }
end

Instance Method Details

#to_jsii ⇒ Object 



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# File 'step_functions_tasks/emr_create_cluster.rb', line 2569

def to_jsii
  result = {}
  result.merge!({
    "scalingAdjustment" => @scaling_adjustment,
    "adjustmentType" => @adjustment_type,
    "coolDown" => @cool_down,
  })
  result.compact
end