Final Update: Wednesday, 25 July 2018 18:48 UTC
We've confirmed that all systems are back to normal with no customer impact as of 07/25, 17:24 UTC. Our logs show the incident started on 07/25, 07:00 UTC and that during the 10.5 hours that it took to resolve the issue customers may have been unable to query metric data, and/or may have received failure notifications when retrieving Application Insights data.
-
Root Cause: The failure was due to a recent deployment that prevented submitted data from fully propagating through our backend systems.
-
Lessons Learned: Engineers will continue to investigate deployment procedures to prevent future recurrences of this issue.
-
Incident Timeline: 10Hours & 24 minutes - 07/25, 07:00 UTC through 07/25, 17:24 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
-Chandar Raghavan