I have a kubernetes cluster with two nodes, and two nodes for etcd,also I am using authentication for my kubernetes. When I run this command: kubectl get cs
I get this output:
NAME STATUS MESSAGE ERROR
scheduler Unhealthy Get http://127.0.0.1:10251/healthz: dial tcp 127.0.0.1:10251: getsockopt: connection refused
controller-manager Healthy ok
etcd-1 Healthy {"health": "true"}
etcd-0 Healthy {"health": "true"}
when I check logs of my kube-apiserver I get this error:
E0516 22:28:14.312855 1 watcher.go:188] watch chan error: etcdserver: mvcc: required revision has been compacted
what's this error for and how can I fix this?
also I get this warning for my kube-controller-manager:
W0516 22:28:14.314137 1 reflector.go:323] k8s.io/kubernetes/pkg/controller/garbagecollector/graph_builder.go:192: watch of <nil> ended with: etcdserver: mvcc: required revision has been compacted
and in for my kube-scheduler:
W0516 10:43:38.097940 1 reflector.go:323] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:451: watch of *v1.Pod ended with: too old resource version: 2153673 (2154157)
my kubernetes version is 1.6.3
I really appreciate your help:)
update etcd version to 3.0.11 or later