Class: Aws::EMR::Types::AutoScalingPolicyDescription

Inherits:

Struct

• Object
• Struct
• Aws::EMR::Types::AutoScalingPolicyDescription

Defined in:

(unknown)

Overview

An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster. The automatic scaling policy defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. See PutAutoScalingPolicy.

Returned by:

• InstanceGroup#auto_scaling_policy
• PutAutoScalingPolicyOutput#auto_scaling_policy

See Also:

• AWS API Documentation

Instance Attribute Summary

• #constraints ⇒ Types::ScalingConstraints

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

• #rules ⇒ Array<Types::ScalingRule>

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

• #status ⇒ Types::AutoScalingPolicyStatus

  The status of an automatic scaling policy.

Instance Attribute Details

#constraints ⇒ Types::ScalingConstraints

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.

Returns:

• (Types::ScalingConstraints) —

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

#rules ⇒ Array<Types::ScalingRule>

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

Returns:

• (Array<Types::ScalingRule>) —

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

#status ⇒ Types::AutoScalingPolicyStatus

The status of an automatic scaling policy.

Returns:

• (Types::AutoScalingPolicyStatus) —

  The status of an automatic scaling policy.