Monday, February 21, 2022

Experiencing Data Latency issue in Azure Portal for Many Data Types - 02/21 - Resolved

Final Update: Monday, 21 February 2022 13:12 UTC

We've confirmed that all systems are back to normal with no customer impact as of 02/21, 12:08 UTC. Our logs show the incident started on 02/21, 11:38 UTC and that during the 30 minutes that it took to resolve the issue some of the customers ingesting telemetry in China east region may have experienced intermittent data latency, data gaps and incorrect alert activation.
  • Root Cause: The failure was due to one of our backend dependent service becoming unhealthy.
  • Incident Timeline: 30 minutes - 02/21, 11:38 UTC through 02/21, 12:08 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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