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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

Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.