Final Update: Tuesday, 01 October 2019 18:35 UTC
We've confirmed that all systems are back to normal with no customer impact as of 10/1, 18:12 UTC. Our logs show the incident started on 10/1, 16:30 UTC and that during the 1 hour and 42 minutes that it took to resolve the issue 5.5% of customers experienced query failures for log analytics data as well as possible unexpected missing or triggered log search alerts.
- Root Cause: The failure was a result of unexpected errors on several backend processor nodes reducing the overall availability of the resource to process requests.
- Incident Timeline: 1 Hours & 42 minutes
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
-Jeff
