Experiencing Data Gaps issue in Azure Portal for Many Data Types – 12/09 – Resolved

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Final Update: Thursday, 09 December 2021 09:24 UTC

We've confirmed that all systems are back to normal with no customer impact as of 12/09, 08:46 UTC. Our logs show the incident started on 12/09, 05:08 UTC and that during the 3 hours & 38 minutes that it took to resolve the issue, customers may have experienced intermittent log data gaps and incorrect alert activation in Japan East region.
  • Root Cause: The failure was due to one of the backend service became unhealthy.
  • Incident Timeline: 3 Hours & 38 minutes - 12/09, 05:08 UTC through 12/09, 08:46 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.


Initial Update: Thursday, 09 December 2021 07:54 UTC

We are aware of issues within Application Insights and are actively investigating. Some customers may experience intermittent log data gaps and incorrect alert activation starting from 12/09, 05:08 UTC
  • Work Around: None
  • Next Update: Before 12/09 09:00 UTC
We are working hard to resolve this issue and apologize for any inconvenience.

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