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Final Update: Saturday, 11 January 2020 03:01 UTC

We've confirmed that all systems are back to normal with no customer impact as of 01/11, 00:03 UTC. Our logs show the incident started on 01/10, 22:20 UTC and that during the 1 hour and 43 minutes that it took to resolve the issue customers in South Central US may have experienced issues with data access from Azure portal and query failures in Application Insights and Log Analytics.
  • Root Cause: The failure was due to one of the backend services.
  • Incident Timeline: 1 Hour & 43 minutes - 01/10, 22:20 UTC through 01/11, 00:03 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.

-Jayadev

Initial Update: Friday, 10 January 2020 22:49 UTC

We are aware of issues within Application Insights and Log Analytics and are actively investigating. Customers in South Central US may experience data access and query failure issues from Azure portal.
  • Work Around: retries might help
  • Next Update: Before 01/11 03:00 UTC
We are working hard to resolve this issue and apologize for any inconvenience.
-Jayadev