Final Update: Thursday, 14 October 2021 14:42 UTC
We've confirmed that all systems are back to normal with no customer impact as of 10/14, 13:52 UTC. Our logs show the incident started on 10/14, 13:00 UTC and that during the 52 minutes that it took to resolve the issue some customers may have experienced 500 errors and high latency when querying App services.
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Root Cause: The failure was due to a backend service becoming unhealthy.
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Incident Timeline: 52 minutes - 10/14, 13:00 UTC through 10/14, 13:52 UTC
We understand that customers rely on Azure Monitor Essentials as a critical service and apologize for any impact this incident caused.
-Soumyajeet