Interface CfnCluster.AutoScalingPolicyProperty
- All Superinterfaces:
software.amazon.jsii.JsiiSerializable
- All Known Implementing Classes:
CfnCluster.AutoScalingPolicyProperty.Jsii$Proxy
- Enclosing class:
CfnCluster
@Stability(Stable)
public static interface CfnCluster.AutoScalingPolicyProperty
extends software.amazon.jsii.JsiiSerializable
AutoScalingPolicy
is a subproperty of InstanceGroupConfig
.
AutoScalingPolicy
defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. For more information, see Using Automatic Scaling in Amazon EMR in the Amazon EMR Management Guide .
Example:
// The code below shows an example of how to instantiate this type. // The values are placeholders you should change. import software.amazon.awscdk.services.emr.*; AutoScalingPolicyProperty autoScalingPolicyProperty = AutoScalingPolicyProperty.builder() .constraints(ScalingConstraintsProperty.builder() .maxCapacity(123) .minCapacity(123) .build()) .rules(List.of(ScalingRuleProperty.builder() .action(ScalingActionProperty.builder() .simpleScalingPolicyConfiguration(SimpleScalingPolicyConfigurationProperty.builder() .scalingAdjustment(123) // the properties below are optional .adjustmentType("adjustmentType") .coolDown(123) .build()) // the properties below are optional .market("market") .build()) .name("name") .trigger(ScalingTriggerProperty.builder() .cloudWatchAlarmDefinition(CloudWatchAlarmDefinitionProperty.builder() .comparisonOperator("comparisonOperator") .metricName("metricName") .period(123) .threshold(123) // the properties below are optional .dimensions(List.of(MetricDimensionProperty.builder() .key("key") .value("value") .build())) .evaluationPeriods(123) .namespace("namespace") .statistic("statistic") .unit("unit") .build()) .build()) // the properties below are optional .description("description") .build())) .build();
- See Also:
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Nested Class Summary
Modifier and TypeInterfaceDescriptionstatic final class
A builder forCfnCluster.AutoScalingPolicyProperty
static final class
An implementation forCfnCluster.AutoScalingPolicyProperty
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Method Summary
Methods inherited from interface software.amazon.jsii.JsiiSerializable
$jsii$toJson
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Method Details
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getConstraints
The upper and lower Amazon EC2 instance limits for an automatic scaling policy.Automatic scaling activity will not cause an instance group to grow above or below these limits.
- See Also:
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getRules
The scale-in and scale-out rules that comprise the automatic scaling policy.- See Also:
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builder
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