predefinedMetricType

The metric type. The following are notes about specific metric types:

• ALBRequestCountPerTarget - This metric type applies only to Spot Fleets and ECS services.

• ECSServiceAverageCPUUtilizationHighResolution - The high-resolution version of ECSServiceAverageCPUUtilization that uses 20-second CloudWatch metrics. Use this metric for target tracking scaling policies that evaluate metrics every 20 seconds. You must enable high-resolution metrics in Amazon ECS before creating a scaling policy with this metric type.

• ECSServiceAverageMemoryUtilizationHighResolution - The high-resolution version of ECSServiceAverageMemoryUtilization that uses 20-second CloudWatch metrics. Use this metric for target tracking scaling policies that evaluate metrics every 20 seconds. You must enable high-resolution metrics in Amazon ECS before creating a scaling policy with this metric type.