Experiencing Data Gaps for Availability Data Type – 6/9 – Resolved

Final Update: Tuesday, 6/9/2015 23:25 UTC

We’ve confirmed that all systems are back to normal with no customer impact as of 6/9/2015 22:30 UTC. Our logs show the incident started on 6/9/2015 6:00 UTC and that during the 16 hours and 30 minutes that it took to resolve the issue customers experienced up to 2% data loss for availability data.

Root Cause: The failure was due to an issue with Azure Storage.
Incident Timeline: 16 Hours & 30 minutes - 6/9/2015 6:00 UTC through 6/9/2015 22:30 UTC

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

-Application Insights Service Delivery Team

Update: Tuesday, 6/9/2015 22:10 UTC

Root cause has been isolated to an issue with Azure Storage. DevOps continues to work with the Azure Storage team to mitigate the issue.

Work Around: None
Next Update: Before 6/10/2015 02:00 UTC

-Application Insights Service Delivery Team

Update: Tuesday, 6/9/2015 19:56 UTC

Our DevOps team continues to investigate issues within Application Insights. Root cause is not fully understood at this time. Some customers continue to experience data loss for availability data. We are working to establish the start time for the issue, initial findings indicate that the problem began at approximately 6/9/2015 06:00 UTC. We currently have no estimate for resolution.

Work Around: None
Next Update: Before 6/9/2015 15:00 UTC

-Application Insights Service Delivery Team

Initial Update: Tuesday, 6/9/2015 18:37 UTC

We are aware of issues within Application Insights and are actively investigating. Some customers may experience Data Gaps. The following data types are affected: Availability.

Work Around: None
Next Update: Before 19:45 UTC

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

-Application Insights Service Delivery Team


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