Experiencing Alerting failure for Anomaly detection reporting – 09/20 – Resolved

Final Update: Tuesday, 20 September 2016 11:58 UTC

We've confirmed that all systems are back to normal with no customer impact as of 10:00 UTC. Our logs show the incident started on 9/20, 06:00 UTC and that during the 4 hours that it took to resolve the issue 30% of customers would not have received the Anomaly detection reporting mail.
  • Root Cause: The failure was due to an issue in one of our dependent platform services.
  • Lessons Learned: We have collected required telemetry data during the impact period and also identified improvements which will be rolled out to avoid such re-occurrences in future.
  • Incident Timeline: 4 Hours - 9/20, 06:00 UTC through 9/20, 10:00 UTC

We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.


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