We've confirmed that all systems are back to normal with no customer impact as of 10/22, 05:25 UTC. Our logs show the incident started on 10/22, 04:20 UTC and that during the 1 hour 5 minutes that it took to resolve the issue, some customers may have experienced intermittent data latency, data gaps and incorrect alert activation for the resources hosted in Central US region. This impact is limited to customers using Log Analytics.
Root Cause: The failure was due to issues with one of our dependent service.
Incident Timeline: 1 Hours & 5 minutes - 10/22, 04:20 UTC through 10/22, 05:25 UTC
We understand that customers rely on Log Analytics as a critical service and apologize for any impact this incident caused.