Class: AWSCDK::EMR::CfnCluster::PlacementGroupConfigProperty

Inherits:

Jsii::Struct

• Object
• Jsii::Struct
• AWSCDK::EMR::CfnCluster::PlacementGroupConfigProperty

Defined in:

emr/cfn_cluster.rb

Overview

Placement group configuration for an Amazon EMR cluster.

The configuration specifies the placement strategy that can be applied to instance roles during cluster creation.

To use this configuration, consider attaching managed policy AmazonElasticMapReducePlacementGroupPolicy to the Amazon EMR role.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-placementgroupconfig.html

Instance Attribute Summary

• #instance_role ⇒ String readonly

  Role of the instance in the cluster.

• #placement_strategy ⇒ String^? readonly

  Amazon EC2 Placement Group strategy associated with instance role.

Class Method Summary

• .jsii_properties ⇒ Object

Instance Method Summary

• #initialize(instance_role:, placement_strategy: nil) ⇒ PlacementGroupConfigProperty constructor

  A new instance of PlacementGroupConfigProperty.

• #to_jsii ⇒ Object

Constructor Details

#initialize(instance_role:, placement_strategy: nil) ⇒ PlacementGroupConfigProperty

Returns a new instance of PlacementGroupConfigProperty.

Parameters:

• instance_role (String) —

  Role of the instance in the cluster.

• placement_strategy (String, nil) (defaults to: nil) —

  Amazon EC2 Placement Group strategy associated with instance role.

# File 'emr/cfn_cluster.rb', line 2561

def initialize(instance_role:, placement_strategy: nil)
  @instance_role = instance_role
  Jsii::Type.check_type(@instance_role, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "instanceRole")
  @placement_strategy = placement_strategy
  Jsii::Type.check_type(@placement_strategy, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "placementStrategy") unless @placement_strategy.nil?
end

Instance Attribute Details

#instance_role ⇒ String (readonly)

Role of the instance in the cluster.

Starting with Amazon EMR release 5.23.0, the only supported instance role is MASTER .

Returns:

• (String)

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-placementgroupconfig.html#cfn-emr-cluster-placementgroupconfig-instancerole

# File 'emr/cfn_cluster.rb', line 2574

def instance_role
  @instance_role
end

#placement_strategy ⇒ String^? (readonly)

Amazon EC2 Placement Group strategy associated with instance role.

Starting with Amazon EMR release 5.23.0, the only supported placement strategy is SPREAD for the MASTER instance role.

Returns:

• (String, nil)

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-placementgroupconfig.html#cfn-emr-cluster-placementgroupconfig-placementstrategy

# File 'emr/cfn_cluster.rb', line 2581

def placement_strategy
  @placement_strategy
end

Class Method Details

.jsii_properties ⇒ Object

# File 'emr/cfn_cluster.rb', line 2583

def self.jsii_properties
  {
    :instance_role => "instanceRole",
    :placement_strategy => "placementStrategy",
  }
end

Instance Method Details

#to_jsii ⇒ Object

# File 'emr/cfn_cluster.rb', line 2590

def to_jsii
  result = {}
  result.merge!({
    "instanceRole" => @instance_role,
    "placementStrategy" => @placement_strategy,
  })
  result.compact
end