如何解决此错误"watch chan error:etcdserver:mvcc:所需修订已压缩"? [英] How fix this error "watch chan error: etcdserver: mvcc: required revision has been compacted"?
问题描述
我有一个Kubernetes集群,其中有两个节点,两个节点分别用于etcd,我也在对kubernetes使用身份验证.当我运行以下命令时:kubectl get cs
我得到以下输出:
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"}
当我检查kube-apiserver的日志时,出现此错误:
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
此错误的原因是什么,我该如何解决?
what's this error for and how can I fix this?
我的kube-controller-manager也会收到此警告:
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
然后输入我的kube-scheduler:
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)
我的kubernetes版本是1.6.3
my kubernetes version is 1.6.3
非常感谢您的帮助:)
推荐答案
将etcd版本更新为3.0.11或更高版本
update etcd version to 3.0.11 or later
https://github.com/kubernetes/kubernetes/issues/45506
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