We've confirmed that all systems are back to normal with no customer impact as of 09/13, 08:42 UTC. Our logs show the incident started on 09/13, 06:25 UTC and that during the 2 Hours & 17 minutes that it took to resolve the issue some customers may have experienced data access issue and issues with performing crud operations in West US 2 region.
Root Cause: The failure was due to issue with one of our dependent service.
Incident Timeline: 2 Hours & 17 minutes - 09/13, 06:25 UTC through 09/13, 08:42 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.