We've confirmed that all systems are back to normal with no customer impact as of 07/27, 17:50 UTC. Our logs show the incident started on 07/27, 08:05 UTC and that during the 10 hours that it took to resolve the issue customers may have been unable to query metric data, and/or may have received failure notifications when retrieving Application Insights data.
- Root Cause: The failure was due to a
recent deployment that prevented submitted data from fully propagating through
our backend systems
- Lessons Learned: Engineers will continue to
investigate deployment procedures to prevent future recurrences of this issue
- Incident Timeline: 9 Hours & 45 minutes - 07/27, 08:05 UTC through 07/27, 17:50 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
We are aware of issues within Application Insights and are actively investigating. Some customers in West Europe region may experience metrics Data Latency.
- Work Around: None
- Next Update: Before 07/27 20:00 UTC
We are working hard to resolve this issue and apologize for any inconvenience.
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