Final Update: Wednesday, 27 January 2021 10:28 UTC
We've confirmed that all systems are back to normal with no customer impact as of 01/27, 10:00 UTC. Our logs show the incident started on 01/27, 09:15 UTC and that during the 45 minutes that it took to resolve the issue some of customers may have received errors when accessing alerts. The alerts notifications were not impacted.
- Root Cause: We determined that a recent deployment task impacted instances of the backend service which became unhealthy, causing these errors.
- Incident Timeline: 45 minutes - 01/27, 09:15 UTC through 01/27, 10:00 UTC
We understand that customers rely on Azure Monitor as a critical service and apologize for any impact this incident caused.
-Anmol
