AWS Adds Gray Zone Failures to EKS Control Loop
AWS introduces zonal shift to automate traffic management for gray zone failures in EKS.
AWS highlights key lessons learned from running Kubernetes on a large EKS fleet, particularly regarding availability zone failures. These 'gray failures' do not trigger alarms but can significantly impact production. EKS now automates traffic redirection from impaired zones through a mechanism called zonal shift, allowing for quicker responses without operator confirmation.