What is the "kube-node-lease" namespace for?
I know the purpose of other Kubernetes default namespaces such as: kube-system , default & kube-public , but there is no official document about the kube-node-lease . The only official explanation I've found is: Heartbeats, sent by Kubernetes nodes, help determine the availability of a node. There are two forms of heartbeats: updates of NodeStatus and th