Final Update: Thursday, 16 May 2019 10:12 UTC
We've confirmed that all systems are back to normal with no customer impact as of 05/16, 09:55 UTC. Our logs show the incident started on 05/16, 00:55 UTC and that during the ~9 hours that it took to resolve the issue some customers who have configured alerts prior to 05/16, 00:55 UTC might not have received alert fired or alert resolved events during the impacted window.
- Root Cause: The failure was due to configuration issues with one of our dependent service.
- Incident Timeline: 9 Hours - 05/16, 00:55 UTC through 05/16, 09:55 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
-Mohini