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Why does the Controller fail the Health Check with Status: Critical?

Why does the Controller fail the Health Check with Status: Critical when it's installed with DB Aurora RDS?

Issue

When a Controller is installed into an AWS EC2 with Aurora RDS, the bin/platform-admin.sh show-service-status --service Controller returns the following status, even though the Controller checks out fine in all of the logs:

Health Status: Critical
Health: Critical

Why is this happening?

This appears to be an issue in the health check mechanism and is being investigated by engineering.

Knowledge Base

Why does the Controller fail the Health Check with Status: Critical?

Issue

Why is this happening?

Controller (SaaS and On-Premises)