# AWS::Redshift::ScheduledAction ResizeClusterMessage Describes a resize cluster operation. For example, a scheduled action to run the `ResizeCluster` API operation. ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON
{ "ClusterIdentifier" : String, "ClusterType" : String, "NodeType" : String, "NumberOfNodes" : Integer, "Classic" : Boolean }### YAML
ClusterIdentifier: String ClusterType: String NodeType: String NumberOfNodes: Integer Classic: Boolean## Properties #### ClusterIdentifier _Required_: Yes _Type_: String _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### ClusterType _Required_: No _Type_: String _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### NodeType _Required_: No _Type_: String _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### NumberOfNodes _Required_: No _Type_: Integer _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### Classic _Required_: No _Type_: Boolean _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)