Healthwatch Grafana shows "No Data" in Tanzu Application Service Usage Service Dashboard

Products

• VMware Tanzu Platform Core
• VMware Tanzu Platform - Cloud Foundry

Issue/Introduction

Users might find Grafana shows "No Data" in  Tanzu Application Service - Usage Service, while Apps Manager Accounting Report and Orgs Usage Report are still able to display data. 

Environment

VMware Tanzu Platform for Cloud Foundry/Elastic Application Runtime

Healthwatch for VMware Tanzu

Cause

Cause 1: A previous update to the usage service removed structured logging, but inadvertently changed the name gauge metrics are registered under.

Cause 2: The code was using an in-memory Prometheus metrics store. Consequently, data generated by the app-usage-worker was unavailable to the app-usage-server, as the server read from its own isolated internal store. An update is needed so that both components read from and write to a single, shared metric store.

Resolution

The issue has been fixed in the Usage Service (push-usage-service-release) version 674.0.201.

It is included in the following TAS/EAR versions and above:

• 6.0.27
• 10.2.10
• 10.3.7
• 10.4.0

Please upgrade to the fixed version and run the Usage Service errand after the upgrade.