Failed to start Kubernetes Kubelet

一、故障现象kubelet启动报错

Failed to start Kubernetes Kubelet

二、 故障原因：

docker的Cgroup和 kubelet的Cgroup不一致导致的。

三、排查

查看docker的Cgroup

[root@node1 cfg]# sudo docker info| grep Cgroup
 Cgroup Driver: systemd

修改docker的Cgroup

[root@node1 cfg]# vi /etc/docker/daemon.json

查看

[root@node1 cfg]# sudo docker info| grep Cgroup
 Cgroup Driver: cgroupfs

重新启动

[root@node1 cfg]# systemctl restart docker

启动kubelet

[root@node1 cfg]# systemctl status kubelet
● kubelet.service - Kubernetes Kubelet
   Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
   Active: active (running) since Fri 2023-05-26 17:55:11 CST; 9s ago
 Main PID: 8860 (kubelet)
    Tasks: 14
   Memory: 24.7M
   CGroup: /system.slice/kubelet.service
           └─8860 /opt/kubernetes/bin/kubelet --logtostderr=false --v=2 --log-dir=/opt/kubernetes/logs --hostname-over...

May 26 17:55:18 node1 kubelet[8860]: For verbose messaging see aws.Config.CredentialsChainVerboseErrors
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.031772    8860 kubelet.go:1321] Image garbage collection fai... cache
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.201037    8860 kubelet.go:2212] Container runtime network no...alized
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.265016    8860 kubelet.go:2292] node "m1" not found
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.275214    8860 controller.go:228] failed to get node "m1" wh... found
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.373692    8860 kubelet.go:2292] node "m1" not found
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.474354    8860 kubelet.go:2292] node "m1" not found
May 26 17:55:18 node1 kubelet[8860]: E0526 17:55:18.575216    8860 kubelet.go:2292] node "m1" not found
May 26 17:55:19 node1 kubelet[8860]: E0526 17:55:19.139058    8860 kubelet.go:1870] skipping pod synchronization...essful
May 26 17:55:19 node1 kubelet[8860]: E0526 17:55:19.528992    8860 kubelet.go:2212] Container runtime network no...alized
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