Experiencing issues with sending client side telemetry using Javascript SDK in Application Insights – 08/05 – Resolved

Final Update: Friday, 05 August 2016 05:30 UTC

We've confirmed that all systems are back to normal with no customer impact as of 8/5, 04:15 UTC. Our logs show the incident started on 8/5, 00:00 UTC and that during the four hours and fifteen minutes that it took to resolve the issue, customers attempting to implement Application Insights in their applications using Visual Studio 2013/2015 would have experienced failures. Existing JavaScript SDK customers would have experienced data loss.
  • Root Cause: The failure was due to dependent resources going offline during the incident window.
  • Lessons Learned: Our engineers are reviewing the root cause and investigating additional monitoring and failover options to prevent this issue from reoccurring in the future.
  • Incident Timeline:  4 Hours & 15 minutes - 8/5, 00:00 UTC through 8/5, 04:15 UTC

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


Initial Update: Friday, 05 August 2016 03:00 UTC

We are aware of issues within Application Insights and are actively investigating. Customers will see errors while using the Javascript SDK to send client side telemetry to Application Insights..
  • Next Update: Before 08/05 05:00 UTC

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

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