Final Update: Monday, 25 January 2021 21:33 UTC
We've confirmed that all systems are back to normal with no customer impact as of 1/25, 20:25 UTC. Our logs show the incident started on 1/21, 20:20 UTC and that during the 4 days and 5 minutes that it took to resolve the issue, customers in the US Gov Virginia Region could have experienced data loss for the below data types:
HeartBeat
Perf
Security CEF
Security Events
Synapse
- Root Cause: The failure was due to a backend configuration issue.
- Incident Timeline: 4 days and 5 minutes - 1/21, 20:20 UTC through 1/25, 20:25 UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.
-Eric Singleton
