Final Update: Monday, 08 February 2021 17:05 UTC
We've confirmed that all systems are back to normal with no customer impact as of 02/08, 15:30 UTC. Our logs show the incident started on 02/08, 14:20 UTC and that during the 70 minutes that it took to resolve the issue customers experienced misfired log search alerts and possible latent ingestion.
- Root Cause: The failure was due to an issue within compute resources after a backend update process completed which caused nodes to fail to initialize.
- Incident Timeline: 1 Hour & 10 minutes - 02/08, 14:20 UTC through 02/08, 15:30 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
-Jeff