On Sunday, January 21st 2024, at approximately 12:00 UTC a hardware failure in our US-EAST-1 datacenter resulted in two database nodes within the region to reconnect to our cluster while in a non-functional state. The introduction of these nodes to the database cluster within the region caused the database to become unhealthy, resulting in an inability for this cluster to service incoming requests from clients due to an exponential increase in unhealthy connections. By 16:30 UTC our Engineering Team had identified the cause of these unhealthy connections and by 19:00 UTC had prepared a fix to restore this fault. By 20:15 UTC the fix was fully deployed across the cluster, bringing the connection state back to healthy and available for incoming client requests.