故障現象
- k8s
[root@k8s-mastera-new ~]# 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"}
- rancher
登錄rancher，進入儀表盤發現組件告警
警告: 組件 controller-manager 不健康。
警告: 組件 scheduler 不健康。
-
如圖
-
解決方法
/etc/kubernetes/manifests/controller-manager.conf
/etc/kubernetes/manifests/scheduler.conf
這兩個文件里面，刪除--port=0這個配置
然后systemctl restart kubelet
-
原理暫不明確
git上官方說是小bug -
參考文檔
https://my.oschina.net/u/1431757/blog/4550843
https://blog.csdn.net/gaojie314/article/details/116879535
https://github.com/rancher/rancher/issues/28802