Experiencing Data Loss for Log Analytics in West Europe region- 10/05 - Resolved

Published Oct 05 2021 12:05 PM 940 Views
Final Update: Tuesday, 05 October 2021 18:57 UTC

We've confirmed that all systems are back to normal with no customer impact as of 10/03, 11:44 AM UTC. Our logs show the incident started on 10/03, 06:38 AM UTC and that during the  5 hours and 6 minutes that it took to resolve the issue 25% of customers  in West Europe  may have seen duplication in audit logs and REST API data as well as some data loss.
  • Root Cause: The failure was due to  an upstream component sending duplicate sets of data.
  • Incident Timeline: 5 Hours & 6 minutes - 10/03, 06:38 AM UTC through 10/03, 11:44 AM UTC
We understand that customers rely on Azure Log Analytics as a critical service and apologize for any impact this incident caused.

-Shwetha Huilgol

Version history
Last update:
‎Oct 05 2021 02:27 PM
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