Target tracking scaling policies for Application Auto Scaling - Application Auto Scaling
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Target tracking scaling policies for Application Auto Scaling

To create a target tracking scaling policy, you specify an Amazon CloudWatch metric and a target value that represents the ideal average utilization or throughput level for your application. Application Auto Scaling can then scale out the scalable target (add capacity) to handle peak traffic, and scale in the scalable target (remove capacity) to reduce costs during periods of low utilization or throughput.