Adapters in Aria Operations not showing data

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

All adapters under Data Sources -> Integrations in Aria Operations show 'No Data Collecting' and/or 'Warning'

Starting and Stopping collection on adapters doesn't help with collection. 

Environment

Aria Operations 8.x 

Resolution

Restart the Aria Operations cluster as per this article to resolve the issue.