AWS::EMR::InstanceGroupConfig ScalingTrigger
ScalingTrigger is a subproperty of the ScalingRule property type. ScalingTrigger determines the conditions that trigger an automatic scaling activity.
Syntax
To declare this entity in your Amazon CloudFormation template, use the following syntax:
JSON
{ "CloudWatchAlarmDefinition" :CloudWatchAlarmDefinition}
Properties
CloudWatchAlarmDefinition-
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