Final Update: Thursday, 21 March 2019 05:05 UTC
We've confirmed that all systems are back to normal with no customer impact as of 3/21, 02:24 UTC. Our logs show the incident started on 3/21, 02:38 UTC and that during the 14 minutes that it took to resolve the issue customers would have experienced misfiring alerts.
Root Cause: The failure was due to a short internal downstream service availability problem
Incident Timeline: 14 minutes - 3/21, 02:24 UTC through 3/21, 02:38 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
-Jeff Miller
