Experiencing Data Access Issue in Azure portal for Log Analytics - 01/30 - Resolved

Final Update: Sunday, 30 January 2022 15:00 UTC

We've confirmed that all systems are back to normal with no customer impact as of 01/30, 14:25 UTC. Our logs show the incident started on 01/30, 13:25 UTC and that during the 1 hour that it took to resolve the issue some of customers using Azure Log Analytics or Azure Sentinel might have experienced delayed or missed Log Search Alerts and issues accessing data in West US2 region.

• Root Cause: The failure was due one of our backend service was unhealthy.
• Incident Timeline: 1 Hour  - 01/30, 13:25 UTC through 01/30, 14:25 UTC

We understand that customers rely on Azure Log Analytics or Azure Sentinel as a critical service and apologize for any impact this incident caused.

-Sai Kumar