Class: AWSCDK::EMR::CfnCluster::AutoScalingPolicyProperty

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

Overview

AutoScalingPolicy is a subproperty of InstanceGroupConfig .

AutoScalingPolicy defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. For more information, see Using Automatic Scaling in Amazon EMR in the Amazon EMR Management Guide .

See Also:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(constraints:, rules:) ⇒ AutoScalingPolicyProperty

Returns a new instance of AutoScalingPolicyProperty.

Parameters:



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# File 'emr/cfn_cluster.rb', line 956

def initialize(constraints:, rules:)
  @constraints = constraints.is_a?(Hash) ? ::AWSCDK::EMR::CfnCluster::ScalingConstraintsProperty.new(**constraints.transform_keys(&:to_sym)) : constraints
  Jsii::Type.check_type(@constraints, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImZxbiI6ImF3cy1jZGstbGliLmF3c19lbXIuQ2ZuQ2x1c3Rlci5TY2FsaW5nQ29uc3RyYWludHNQcm9wZXJ0eSJ9XX19")), "constraints")
  @rules = rules
  Jsii::Type.check_type(@rules, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImNvbGxlY3Rpb24iOnsiZWxlbWVudHR5cGUiOnsidW5pb24iOnsidHlwZXMiOlt7ImZxbiI6ImF3cy1jZGstbGliLklSZXNvbHZhYmxlIn0seyJmcW4iOiJhd3MtY2RrLWxpYi5hd3NfZW1yLkNmbkNsdXN0ZXIuU2NhbGluZ1J1bGVQcm9wZXJ0eSJ9XX19LCJraW5kIjoiYXJyYXkifX1dfX0=")), "rules")
end

Instance Attribute Details

#constraints ⇒ AWSCDK::IResolvable, AWSCDK::EMR::CfnCluster::ScalingConstraintsProperty (readonly)

The upper and lower Amazon EC2 instance limits for an automatic scaling policy.

Automatic scaling activity will not cause an instance group to grow above or below these limits.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 969

def constraints
  @constraints
end

#rules ⇒ AWSCDK::IResolvable, Array<AWSCDK::IResolvable, AWSCDK::EMR::CfnCluster::ScalingRuleProperty> (readonly)

The scale-in and scale-out rules that comprise the automatic scaling policy.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 974

def rules
  @rules
end

Class Method Details

.jsii_properties ⇒ Object 



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# File 'emr/cfn_cluster.rb', line 976

def self.jsii_properties
  {
    :constraints => "constraints",
    :rules => "rules",
  }
end

Instance Method Details

#to_jsii ⇒ Object 



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# File 'emr/cfn_cluster.rb', line 983

def to_jsii
  result = {}
  result.merge!({
    "constraints" => @constraints,
    "rules" => @rules,
  })
  result.compact
end