Experiencing Data Latency for Multiple Functional Areas – 02/20 – Resolved


Final Update: Saturday, 20 February 2016 12:00 UTC

We’ve confirmed that all systems are back to normal with no customer impact as of 02/20, 12:00 UTC. Our logs show the incident started on 02/20, 03:30 UTC and that during the 8 and a half hours that it took to resolve the issue some customers experienced data latency across data types.
  • Root Cause: The Failure was due to one of the dependent platform service which was impacting Application Insights Processing Service.
  • Lessons Learned: We have collected required telemetry data and will be working with the platform team to plan for future enhancements to avoid the current situation.
  • Incident Timeline: 8 Hours & 30 minutes – 02/20, 03:30 UTC through 02/20, 12:00 UTC

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

-Varun


Update: Saturday, 20 February 2016 10:35 UTC

Root cause has been isolated to failures with dependent service which was impacting Application Insights processing service. Processing service is now working as expected. Some customers may experience data latency over 2 hours and we estimate 6 before all latent data is processed.
  • Work Around: None
  • Next Update: Before 02/20 17:00 UTC

-Durga


Initial Update: Saturday, 20 February 2016 09:30 UTC

We are aware of issues within Application Insights and are actively investigating. Some customers may experience Data Latency. The following data types are affected: Customer Event,Dependency,Exception,Metric,Page Load,Page View,Performance Counter,Request,Trace.
  • Work Around: None
  • Next Update: Before 02/20 15:30 UTC

We are working hard to resolve this issue and apologize for any inconvenience.
-Varun


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