Final Update: Tuesday, 10 September 2019 19:10 UTC
We've confirmed that all systems are back to normal with no customer impact as of 09/10, 20:10 UTC. Our logs show the incident started on 09/10, 19:00 UTC and that during the one hours that it took to resolve the issue 5.5% of customers would have experienced query errors and timeouts.
Root Cause: The failure was due to the unavailability of a back end data system.
Incident Timeline: 1 Hour & 10 minutes - 9/10, 19:00 UTC through 9/10, 20:10 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
Initial Update: Tuesday, 10 September 2019 19:05 UTC
We are aware of issues within Application Insights and are actively investigating. Some customers may experience query failure or timeout issues.
Work Around: none
Next Update: Before 09/10 20:30 UTC
We are working hard to resolve this issue and apologize for any inconvenience.