CustomizedMetricSpecification - Amazon EC2 Auto Scaling
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Represents a CloudWatch metric of your choosing for a target tracking scaling policy to use with Amazon EC2 Auto Scaling.

To create your customized metric specification:

  • Add values for each required parameter from CloudWatch. You can use an existing metric, or a new metric that you create. To use your own metric, you must first publish the metric to CloudWatch. For more information, see Publish Custom Metrics in the Amazon CloudWatch User Guide.

  • Choose a metric that changes proportionally with capacity. The value of the metric should increase or decrease in inverse proportion to the number of capacity units. That is, the value of the metric should decrease when capacity increases.

For more information about CloudWatch, see Amazon CloudWatch Concepts.



The dimensions of the metric.

Conditional: If you published your metric with dimensions, you must specify the same dimensions in your scaling policy.

Type: Array of MetricDimension objects

Required: No


The name of the metric.

Type: String

Required: Yes


The namespace of the metric.

Type: String

Required: Yes


The statistic of the metric.

Type: String

Valid Values: Average | Minimum | Maximum | SampleCount | Sum

Required: Yes


The unit of the metric.

Type: String

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: