Our logs indicate the incident started on 10/29, 21:30 UTC and that during the 1 hour that it took to resolve the issue no customers experienced an issue trying to create a new workspace and receiving "internal server error" as a result.
Root Cause: The failure was due to a DNS limit being reached in China region.
Incident Timeline: 1 Hours & 0 minutes - 10/29, 21:30 UTC through 10/29, 22:30 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
Initial Update: Thursday, 29 October 2020 22:04 UTC
We are aware of issues within Log Analytics and are actively investigating. Some customers in the China region may experience an "internal server error" when trying to create a new workspace.
Next Update: Before 10/30 00:30 UTC
We are working hard to resolve this issue and apologize for any inconvenience. -Jeff