We've confirmed that all systems are back to normal with no customer impact as of 02/18, 13:57 UTC. Our logs show the incident started on 02/18, 13:11 UTC and that during the 46 minutes that it took to resolve the issue, 5% of customers in SUK may have experienced data access and data latency issues.
Root Cause: The failure was due to issue with one of our backend service.
Incident Timeline: 46 minutes - 02/18, 13:11 UTC through 02/18, 13:57 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
Initial Update: Monday, 18 February 2019 14:21 UTC
We are aware of issues within Log Analytics and are actively investigating. Some customers in SUK may experience Data Access issues.
Work Around: None
Next Update: Before 02/18 15:30 UTC
We are working hard to resolve this issue and apologize for any inconvenience. -Naresh