Package software.amazon.awscdk.services.emr

Interface CfnCluster.ManagedScalingPolicyProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnCluster.ManagedScalingPolicyProperty.Jsii$Proxy

Enclosing class:

CfnCluster

@Stability(Stable)
public static interface CfnCluster.ManagedScalingPolicyProperty
extends software.amazon.jsii.JsiiSerializable

Managed scaling policy for an Amazon EMR cluster.

The policy specifies the limits for resources that can be added or terminated from a cluster. The policy only applies to the core and task nodes. The master node cannot be scaled after initial configuration.

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.*;
 ManagedScalingPolicyProperty managedScalingPolicyProperty = ManagedScalingPolicyProperty.builder()
         .computeLimits(ComputeLimitsProperty.builder()
                 .maximumCapacityUnits(123)
                 .minimumCapacityUnits(123)
                 .unitType("unitType")
                 // the properties below are optional
                 .maximumCoreCapacityUnits(123)
                 .maximumOnDemandCapacityUnits(123)
                 .build())
         .scalingStrategy("scalingStrategy")
         .utilizationPerformanceIndex(123)
         .build();
 

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-managedscalingpolicy.html

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	CfnCluster.ManagedScalingPolicyProperty.Builder	A builder for CfnCluster.ManagedScalingPolicyProperty
static final class	CfnCluster.ManagedScalingPolicyProperty.Jsii$Proxy	An implementation for CfnCluster.ManagedScalingPolicyProperty

Method Summary

Modifier and Type	Method	Description
static CfnCluster.ManagedScalingPolicyProperty.Builder	builder()
default Object	getComputeLimits()	The Amazon EC2 unit limits for a managed scaling policy.
default String	getScalingStrategy()	Determines whether a custom scaling utilization performance index can be set.
default Number	getUtilizationPerformanceIndex()	An integer value that represents an advanced scaling strategy.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Details

getComputeLimits

@Stability(Stable)
@Nullable
default Object getComputeLimits()

The Amazon EC2 unit limits for a managed scaling policy.

The managed scaling activity of a cluster is not allowed to go above or below these limits. The limit only applies to the core and task nodes. The master node cannot be scaled after initial configuration.

Returns union: either IResolvable or CfnCluster.ComputeLimitsProperty

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-managedscalingpolicy.html#cfn-emr-cluster-managedscalingpolicy-computelimits

getScalingStrategy

@Stability(Stable)
@Nullable
default String getScalingStrategy()

Determines whether a custom scaling utilization performance index can be set.

Possible values include ADVANCED or DEFAULT .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-managedscalingpolicy.html#cfn-emr-cluster-managedscalingpolicy-scalingstrategy

getUtilizationPerformanceIndex

@Stability(Stable)
@Nullable
default Number getUtilizationPerformanceIndex()

An integer value that represents an advanced scaling strategy.

Setting a higher value optimizes for performance. Setting a lower value optimizes for resource conservation. Setting the value to 50 balances performance and resource conservation. Possible values are 1, 25, 50, 75, and 100.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-emr-cluster-managedscalingpolicy.html#cfn-emr-cluster-managedscalingpolicy-utilizationperformanceindex

builder

@Stability(Stable)
static CfnCluster.ManagedScalingPolicyProperty.Builder builder()

Returns:

a CfnCluster.ManagedScalingPolicyProperty.Builder of CfnCluster.ManagedScalingPolicyProperty