We've confirmed that all systems are back to normal with no customer impact as of 03/30, 10:15 UTC. Our logs show the incident started on 03/30, 08:50 UTC and that during the 1 Hour & 25 Minutes that it took to resolve the issue some customers may have experienced data access issue and delayed or missed alerts in West US 2 region.
Root Cause: The failure was due to issues with one of the backend services.
Incident Timeline: 1 Hours & 25 minutes - 03/30, 08:50 UTC through 03/30, 10:15 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
Initial Update: Tuesday, 30 March 2021 09:42 UTC
We are aware of issues within Azure Log Analytics and are actively investigating. Some customers may experience data access issue and delayed or missed Log Search Alerts in West US 2 region.
Work Around: None
Next Update: Before 03/30 13:00 UTC
We are working hard to resolve this issue and apologize for any inconvenience. -Harshita