The Autoscaler component in Red5 Pro Stream Manager handles autoscaling activities. The Autoscaler receives alarm notifications from the Red5CloudWatchClient accompanied by any necessary data.It then uses information from the launch configuration and scale policy for the group to perform autoscaling operation as dictated by the alarm.

Once an autoscale operation is launched successfully, the Autoscaler blocks additional autoscaling activities by ignoring additional alarms until the newly launched node has settled into the cluster.The autoscaler is responsible for matching alarms with appropriate action logics required to update the nodegroup.