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Final Update: Thursday, 07 November 2019 19:37 UTC

We've confirmed that all systems are back to normal as of 11/07, 18:40 UTC. Our logs show the incident started on 11/07, 13:40 UTC and that during the 3 hours 35 minutes that it took to resolve the issue some of customers ingesting telemetry in East US geographical region may have experienced intermittent data gaps and latency while accessing application data .
Root Cause: The failure was due to one of our backend services entering unhealthy state.
Incident Timeline: 3 Hours & 35 minutes - 11/07, 13:40 UTC through 11/07, 17:15 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.

-Sindhu

Initial Update: Thursday, 07 November 2019 17:30 UTC

We are aware of issues within Application Insights and are actively investigating. Some customers using Application Insights may experience intermittent data gaps while accessing application data in East US region.

Work Around: None
Next Update: Before 11/07 19:30 UTC

We are working hard to resolve this issue and apologize for any inconvenience.
-Sindhu