We've confirmed that all systems are back to normal with no customer impact as of 03/12, 05:51 UTC. Our logs show the incident started on 03/11, 16:00 UTC and that during the 13 hours and 51 minutes that it took to resolve the issue some of the customers using Application Insights in East US region may have experienced long data ingestion delays of up to 110 minutes in this region. No data loss would have occurred.
Root Cause: The failure was due to an issue with one of the back end service.
Incident Timeline: 13 Hours & 51 minutes - 03/11, 16:00 UTC through 03/12, 05:51 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
Update: Thursday, 12 March 2020 02:24 UTC
We continue to investigate issues within Application Insights. Some customers in the US East region continue to experience up to 110 minutes of latency. The issue appears to related to latency in a backend dependency.
Work Around: None
Next Update: Before 03/12 08:30 UTC
Update: Wednesday, 11 March 2020 22:22 UTC
We continue to investigate issues within Application Insights. Some customers in the US East region continue to experience up to 110 minutes of latency. Initial findings indicate that the problem began at 3/11 ~16:00 UTC. We currently have no estimate for resolution.
Work Around: None
Next Update: Before 03/12 02:30 UTC
Initial Update: Wednesday, 11 March 2020 20:29 UTC
We are aware of issues within Application Insights and are actively investigating. Some customers in the US East Region may experience Data Latency.
Work Around: none
Next Update: Before 03/11 22:30 UTC
We are working hard to resolve this issue and apologize for any inconvenience. -Eric Singleton