Final Update: Monday, 06 January 2020 05:39 UTC
We've confirmed that all systems are back to normal with no customer impact as of 2020/01/06, 05:23 UTC. Our logs show the incident started on 2019/12/19, 10:00 UTC and that during the 18 days 19 hours 37 minutes that it took to resolve the issue some of customers in Azure China East 2 Region experienced issue while accessing data through Logs Blade in the Azure Portal.
- Root Cause: The failure was due to an issue with one of our dependent service.
- Incident Timeline: 18 days 19 Hours & 37 minutes - 2019/12/19, 10:00 UTC through 2020/01/06, 05:23 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
-Monish