k8s的kubelet.service 启动失败

#systemctl status kubelet.service
● kubelet.service - Kubernetes API Server
   Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Thu 2018-08-09 15:55:54 CST; 7min ago
     Docs: https://kubernetes.io/doc
  Process: 5718 ExecStart=/usr/bin/kubelet --kubeconfig=/etc/kubernetes/kubeconfig.yaml --logtostderr=false --log-dir=/var/log/kubernetes --v=2 (code=exited, status=255)
 Main PID: 5718 (code=exited, status=255)

Aug 09 15:55:53 test.novalocal systemd[1]: kubelet.service: main process exited, code=exited, status=255/n/a
Aug 09 15:55:53 test.novalocal systemd[1]: Unit kubelet.service entered failed state.
Aug 09 15:55:53 test.novalocal systemd[1]: kubelet.service failed.
Aug 09 15:55:54 test.novalocal systemd[1]: kubelet.service holdoff time over, scheduling restart.
Aug 09 15:55:54 test.novalocal systemd[1]: start request repeated too quickly for kubelet.service
Aug 09 15:55:54 test.novalocal systemd[1]: Failed to start Kubernetes API Server.
Aug 09 15:55:54 test.novalocal systemd[1]: Unit kubelet.service entered failed state.
Aug 09 15:55:54 test.novalocal systemd[1]: kubelet.service failed.

google了一把,发现k8s的github网站上,也有人遇到过呢

https://github.com/kubernetes/kubernetes/issues/54542

拿到的答案是, 

1,关闭系统交换,  参数-a 关闭所有交换设备

swapoff -a

2,kubelet 的启动参数 

--cgroup-driver=systemd --runtime-cgroups=/systemd/system.slice --kubelet-cgroups=/systemd/system.slice

 参考: 

1,http://www.cnblogs.com/fengjian2016/p/6689212.html

2,https://github.com/kubernetes/kubernetes/issues/56850