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  • Overview
  • Instructions
  1. CloudWatch
  2. Amazon CloudWatch
  3. Anomaly Detection

Create Anomaly Detector

Overview

The following shows you how to setup an Anomaly Detector within CloudWatch.

Instructions

  1. Access the CloudWatch Console: Go to https://console.aws.amazon.com/cloudwatch/.

  2. Navigate to Log Anomalies: Choose Logs > Log Anomalies.

  3. Create the Anomaly Detector:

    • Click Create anomaly detector.

    • Select the log group to be monitored.

    • Enter a name for the anomaly detector.

  4. Optional Configurations:

    • Evaluation Frequency:

      • Adjust from the default (5 minutes) based on how often the log group receives new logs (e.g., set to 15 minutes if logs arrive every 10 minutes).

    • Filter Patterns:

      • Define filter patterns to detect anomalies only in logs with specific words or strings.

      • Test patterns using sample log messages in Test Pattern.

  5. Advanced Configuration (Optional):

    • Anomaly Visibility Period:

      • Set how long anomalies are displayed (default is 21 days).

    • KMS Encryption:

      • Assign an AWS KMS key by entering its ARN to encrypt the anomaly data at rest.

      • Ensure CloudWatch Logs service principal has permissions to use the KMS key.

  6. Enable Anomaly Detection:

    • Click Enable Anomaly Detection to activate the detector.

  7. Training and Activation:

    • The anomaly detector trains for about 15 minutes using recent log events.

    • After training, it begins detecting and displaying anomalies.

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Last updated 8 months ago