Final Update: Friday, 13 September 2019 04:39 UTC
We've confirmed that all systems are back to normal with no customer impact as of 09/13, 03:35 UTC. Our logs show the incident started on 09/13, 01:46 UTC and that during the 1 hour 49 minutes that it took to resolve the issue some customers from West US2 region may have experienced log processing delays with OMS workspaces hosted in this region.
- Root Cause: The failure was due to performance issue with one of our backend service.
- Incident Timeline: 1 Hour & 49 minutes - 09/13, 01:46 UTC through 09/13, 03:35 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
-Mohini