'Certificate validation failed' warning message for adapter in Aria Operations

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• Adapter is in warning state with message Certificate validation failed when mousing over warning for adapter instance:
  

  State: Collecting
  Status: Object Down
  Message: Certificate validation failed

• When generating a report for objects that are collected by the affected adapter instance the metrics will appear with - (hyphen) due to missing data collection

Environment

Aria Operations 8.x 

Cause

Expired Adapter Certificate in Aria Operations.  This may occur periodically as Environments grow and certificates expire.

Resolution

1. Verify that the certificate on the endpoint is not expired before proceeding. Renew certificate on endpoint if required, by following vendor documentation for replacing certificate on endpoint
2. Follow procedure in KB article How to renew an adapter certificate or clear the Expired Certificates banner in Aria Operations to import new certificate from endpoint, ensuring that you import new certificate from endpoint before deleting expired certificate

Additional Information

Review article Certificate overview for VMware Aria Operations section 'Adapter and authentication sources' for more information on endpoint certificates and potential caveats.