We've confirmed that all systems are back to normal with no customer impact as of 1/16, 01:05 UTC. Our logs show the incident started on 1/16, 00:55 UTC and that during the 10 minutes that it took to resolve the issue 4.3% of customers experienced failures to query their data.
Root Cause: The failure was due to an operating threshold being exceeded.
Incident Timeline: 10 minutes - 1/16, 00:55 UTC through 116, 01:05 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.