AWS CloudFormation
User Guide (API Version 2010-05-15)

CloudWatch Logs MetricFilter MetricTransformation Property

MetricTransformation is a property of the AWS::Logs::MetricFilter resource that describes how to transform log streams into a CloudWatch metric.



{ "DefaultValue": Double, "MetricName": String, "MetricNamespace": String, "MetricValue": String }


DefaultValue: Double MetricName: String MetricNamespace: String MetricValue: String



For more information about constraints and values for each property, see MetricTransformation in the Amazon CloudWatch Logs API Reference.


The value to emit when a filter pattern does not match a log event. This value can be null.

Required: No

Type: Double


The name of the CloudWatch metric to which the log information will be published.

Required: Yes

Type: String


The destination namespace of the CloudWatch metric. Namespaces are containers for metrics. For example, you can add related metrics in the same namespace.

Required: Yes

Type: String


The value that is published to the CloudWatch metric. For example, if you're counting the occurrences of a particular term like Error, specify 1 for the metric value. If you're counting the number of bytes transferred, reference the value that is in the log event by using $ followed by the name of the field that you specified in the filter pattern, such as $size.

Required: Yes

Type: String


For samples of the MetricTransformation property, see AWS::Logs::MetricFilter or Amazon CloudWatch Logs Template Snippets.

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