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01、问题描述
使用kubectl get cs查看K8s组件状态,发现scheduler和controller-manager状态为Unhealthy,但集群可以正常使用。
- [root@k8s-master ~]# kubectl get cs
- Warning: v1 ComponentStatus is deprecated in v1.19+
- NAME STATUS MESSAGE ERROR
- scheduler Unhealthy Get "http://127.0.0.1:10251/healthz": dial tcp 127.0.0.1:10251: connect: connection refused
- controller-manager Unhealthy Get "http://127.0.0.1:10252/healthz": dial tcp 127.0.0.1:10252: connect: connection refused
- etcd-0 Healthy {"health":"true"}
02、解决方式
健康检查报错,10250和10251端口不存在,开启scheduler, control-manager的10251,10252端口即可。
(1)修改以下配置文件:
静态pod的路径:/etc/kubernetes/manifests
将kube-scheduler.yaml和kube-controller-manager.yaml,把port=0那行注释
- [root@k8s-master ~]# cd /etc/kubernetes/manifests/
- [root@k8s-master manifests]# vi kube-scheduler.yaml
vi kube-controller-manager.yaml
(2)无需重启即可生效,使用kubectl get cs重新查看组件状态,显示正常。
- [root@k8s-master manifests]# kubectl get cs
- Warning: v1 ComponentStatus is deprecated in v1.19+
- NAME STATUS MESSAGE ERROR
- controller-manager Healthy ok
- scheduler Healthy ok
- etcd-0 Healthy {"health":"true"}
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