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Amazon Rekognition
Developer Guide

CloudWatch Metrics for Rekognition

This section contains information about the Amazon CloudWatch metrics and the Operation dimension available for Amazon Rekognition.

You can also see an aggregate view of Rekognition metrics from the Rekognition console. For more information, see Exercise 4: See Aggregated Metrics (Console).

CloudWatch Metrics for Rekognition

The following table summarizes the Rekognition metrics.

Metric Description

SuccessfulRequestCount

The number of successful requests. The response code range for a successful request is 200 to 299.

Unit: Count

Valid statistics: Sum,Average

ThrottledCount

The number of throttled requests. Rekognition throttles a request when it receives more requests than the limit of transactions per second set for your account. If the limit set for your account is frequently exceeded, you can request a limit increase. To request an increase, see AWS Service Limits.

Unit: Count

Valid statistics: Sum,Average

ResponseTime

The time in milliseconds for Rekognition to compute the response.

Units:

  1. Count for Data Samples statistics

  2. Milliseconds for Average statistics

Valid statistics: Data Samples,Average

Note

The ResponseTime metric is not included in the Rekognition metric pane.

DetectedFaceCount

The number of faces detected with the IndexFaces or DetectFaces operation.

Unit: Count

Valid statistics: Sum,Average

DetectedLabelCount

The number of labels detected with the DetectLabels operation.

Unit: Count

Valid statistics: Sum,Average

ServerErrorCount

The number of server errors. The response code range for a server error is 500 to 599.

Unit: Count

Valid statistics: Sum, Average

UserErrorCount

The number of user errors (invalid parameters, invalid image, no permission, etc). The response code range for a user error is 400 to 499.

Unit: Count

Valid statistics: Sum,Average

CloudWatch Dimension for Rekognition

To retrieve operation-specific metrics, use the Rekognition namespace and provide an operation dimension. For more information about dimensions, see Dimensions in the Amazon CloudWatch User Guide.