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Answer: Add a warm pool to the Auto Scaling group.
An EC2 Auto Scaling warm pool allows you to pre-initialize instances and keep them in a stopped or running (but idle) state. This significantly reduces the time required for scale-out actions caused by long-running boot scripts, without the cost of fully overprovisioning active capacity.
Author: Ritesh Yadav
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Question #62
A company runs an application on Amazon EC2 instances that are in an Amazon EC2 Auto Scaling group. Scale-out actions take a long time to become complete because of long-running boot scripts. A CloudOps engineer must implement a solution to reduce the required time for scale-out actions without overprovisioning the Auto Scaling group. Which solution will meet these requirements?
A
Change the launch configuration to use a larger instance size.
B
Increase the minimum number of instances in the Auto Scaling group.
C
Add a predictive scaling policy to the Auto Scaling group.
D
Add a warm pool to the Auto Scaling group.
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