We've confirmed that all systems are back to normal with no customer impact as of 03/11, 12:15 UTC. Our logs show the incident started on 03/11, 10:40 UTC and that during the 1 hour and 35 minutes that it took to resolve the issue some of customers in USGov Virginia region may have experienced issues with missed or delayed Log alerts and Log Search alerts, or experiencing data access issues.
Root Cause: The failure was due to recent deployment task.
Incident Timeline: 1 Hour & 35 minutes - 03/11, 10:40 UTC through 03/11, 12:15 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.