Database Management

For DPA launched on Amazon Web Services, monitoring stops or DPA will not start

DPA launched on Amazon Web Services (AWS) are returning the errors "DPA can't connect to the AWS Marketplace Metering Service and has stopped monitoring." or "DPA cannot start because the image validation failed."

First published date

8/10/2022 6:53 PM

Last published date

8/10/2022 6:53 PM

Overview

When DPA is launched on Amazon Web Services (AWS), the following errors indicate that DPA cannot get information from the AWS Marketplace Metering Service, which prevents DPA from monitoring:

  • For an existing deployment that has been monitoring instances, monitoring stops and you see the following message:

    DPA can't connect to the AWS Marketplace Metering Service and has stopped monitoring.

  • For an AWS image being started for the first time after repository creation, you see the following message:

    DPA cannot start because the image validation failed.

    The cloud.log includes messages such as:

    Failed to load the product code.

Product section

Database Performance Analyzer

Cause

AWS uses their instance metadata service (IMDS) to send metering and other data to DPA. AWS recently introduced IMDS version 2 and made it the default. However, DPA requires IMDS version 1.

Resolution

To resolve this issue:

  • For existing images, following the instructions in Configuring the instance metadata service on your environment's instances (© 2022 Amazon Web Services, available at https://docs.aws.amazon.com/, obtained on August 5, 2022) to change the version of the IMDS being used.

    Under Disable IMDSv1, make sure that the Disabled checkbox is not selected.

    IMDSv1.png

  • For new images, redeploy the image in AWS. When selecting launch options:

    1. Expand the Advanced details section.

    2. Under Metadata version, select V1 and V2.

      v1andv2.png