We've confirmed that all systems are back to normal with no customer impact as of 02/19, 08:14 UTC. Our logs show the incident started on 02/19, 07:35 UTC and that during the 39 minutes that it took to resolve the issue 4% of customers in SEAU 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: 39 minutes - 02/19, 07:35 UTC through 02/19, 08:14 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
Initial Update: Tuesday, 19 February 2019 08:47 UTC
We are aware of issues within Log Analytics and are actively investigating. Some customers in SEAU may experience Data Access issues.
Work Around: None
Next Update: Before 02/19 11:00 UTC
We are working hard to resolve this issue and apologize for any inconvenience. -Naresh