Experiencing Data Latency for Many Data Types – 9/16 – Resolved

Final Update: Wednesday, 9/16/2015 05:27 UTC

We’ve confirmed that all systems are back to normal with no customer impact as of 9/16, 04:30 UTC. Our logs show the incident started on 9/15, 23:35 UTC and that during the 5 hours that it took to resolve the issue some of the customers may have experienced high latency for most of the data types.

Root Cause: The failure was due to some compute instances having higher than normal queue build up thereby causing them to fall behind on indexing data
Incident Timeline: 4 Hours & 55 minutes -  9/15, 23:35 UTC through 9/16, 04:30  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

Initial Update: Wednesday, 9/16/2015 01:57 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: Availability, Customer Event, Dependency, Metric, Page Load, Page View, Performance Counter, Request, Trace.

DevOps are engaged and investigating the issue.

Work Around: None
Next Update: Before 9/16/2015 09:00 UTC

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

-Application Insights Service Delivery Team


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