AWS CloudFormation
User Guide (Version )

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AWS::EMR::Cluster ScalingTrigger

ScalingTrigger is a subproperty of the ScalingRule property type. ScalingTrigger determines the conditions that trigger an automatic scaling activity.


To declare this entity in your AWS CloudFormation template, use the following syntax:



The definition of a CloudWatch metric alarm. When the defined alarm conditions are met along with other trigger parameters, scaling activity begins.

Required: Yes

Type: CloudWatchAlarmDefinition

Update requires: No interruption

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