interface AutoScalingPolicyProperty

Language	Type name
.NET	Amazon.CDK.AWS.StepFunctions.Tasks.EmrCreateCluster.AutoScalingPolicyProperty
Go	github.com/aws/aws-cdk-go/awscdk/v2/awsstepfunctionstasks#EmrCreateCluster_AutoScalingPolicyProperty
Java	software.amazon.awscdk.services.stepfunctions.tasks.EmrCreateCluster.AutoScalingPolicyProperty
Python	aws_cdk.aws_stepfunctions_tasks.EmrCreateCluster.AutoScalingPolicyProperty
TypeScript (source)	aws-cdk-lib » aws_stepfunctions_tasks » EmrCreateCluster » AutoScalingPolicyProperty

An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster.

See also: https://docs.aws.amazon.com/emr/latest/APIReference/API_AutoScalingPolicy.html

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as cdk from 'aws-cdk-lib';
import { aws_stepfunctions_tasks as stepfunctions_tasks } from 'aws-cdk-lib';
const autoScalingPolicyProperty: stepfunctions_tasks.EmrCreateCluster.AutoScalingPolicyProperty = {
  constraints: {
    maxCapacity: 123,
    minCapacity: 123,
  },
  rules: [{
    action: {
      simpleScalingPolicyConfiguration: {
        scalingAdjustment: 123,

        // the properties below are optional
        adjustmentType: stepfunctions_tasks.EmrCreateCluster.ScalingAdjustmentType.CHANGE_IN_CAPACITY,
        coolDown: 123,
      },

      // the properties below are optional
      market: stepfunctions_tasks.EmrCreateCluster.InstanceMarket.ON_DEMAND,
    },
    name: 'name',
    trigger: {
      cloudWatchAlarmDefinition: {
        comparisonOperator: stepfunctions_tasks.EmrCreateCluster.CloudWatchAlarmComparisonOperator.GREATER_THAN_OR_EQUAL,
        metricName: 'metricName',
        period: cdk.Duration.minutes(30),

        // the properties below are optional
        dimensions: [{
          key: 'key',
          value: 'value',
        }],
        evaluationPeriods: 123,
        namespace: 'namespace',
        statistic: stepfunctions_tasks.EmrCreateCluster.CloudWatchAlarmStatistic.SAMPLE_COUNT,
        threshold: 123,
        unit: stepfunctions_tasks.EmrCreateCluster.CloudWatchAlarmUnit.NONE,
      },
    },

    // the properties below are optional
    description: 'description',
  }],
};

Properties

Name	Type	Description
constraints	ScalingConstraintsProperty	The upper and lower EC2 instance limits for an automatic scaling policy.
rules	ScalingRuleProperty[]	The scale-in and scale-out rules that comprise the automatic scaling policy.

---

constraints

Type: ScalingConstraintsProperty

The upper and lower EC2 instance limits for an automatic scaling policy.

Automatic scaling activity will not cause an instance group to grow above or below these limits.

---

rules

Type: ScalingRuleProperty[]

The scale-in and scale-out rules that comprise the automatic scaling policy.