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AWS CloudFormation
User Guide (API Version 2010-05-15)

Amazon EMR Cluster JobFlowInstancesConfig AutoScalingPolicy Constraints ScalingRule

ScalingRule is a subproperty of the Amazon EMR Cluster JobFlowInstancesConfig property that specifies the rules for an Auto Scaling group policy.

Syntax

JSON

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{ "Action" : ScalingAction, "Description" : String, "Name" : String, "Trigger" : ScalingTrigger }

YAML

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Action: ScalingAction Description: String Name: String Trigger: ScalingTrigger

Properties

Action

The conditions that trigger an automatic scaling activity.

Required: Yes

Type: Amazon EMR Cluster ScalingAction

Description

A friendly, more verbose description of the automatic scaling rule.

Required: No

Type: String

Name

The name used to identify an automatic scaling rule. Rule names must be unique within a scaling policy.

Required: Yes

Type: String

Trigger

The CloudWatch alarm definition that determines when automatic scaling activity is triggered.

Required: Yes

Type: Amazon EMR Cluster ScalingTrigger

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