Final Update: Wednesday, 15 September 2021 07:22 UTC
We've confirmed that all systems are back to normal with no customer impact as of 09/15, 06:40 UTC. Our logs show the incident started on 09/15, 06:05 UTC and that during the 35 minutes that it took to resolve the issue some customers may have experienced data access issue and issues with missed or delayed Log Search alerts in Australia East region.
Root Cause: The failure was due to issue with one of our dependent service.
Incident Timeline: 35 minutes - 09/15, 06:05 UTC through 09/15, 06:40 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.