Final Update: Saturday, 26 September 2020 21:29 UTC
We've confirmed that all systems are back to normal with no customer impact as of 09/26, 21:05 UTC. Our logs show the incident started on 09/26, 20:10 UTC and that during the 55 mins that it took to resolve the issue customers in Central US experienced issues with missed or delayed Log search alerts.
Root Cause: The failure was due to backend service being unhealthy.
Incident Timeline: 55 minutes - 09/26, 20:10 UTC through 09/26, 21:05 UTC
We understand that customers rely on Log Search Alerts as a critical service and apologize for any impact this incident caused.