[ERROR Port-10250]: Port 10250 is in use

执行:kubeadm join 192.168.118.200:6443 --token brglsa.hs4cqsalc8nh86kl --discova256:dcda322dd0313ab38515b9e602d97ad970877fe2f148a22a763cd7cad1b8fa5e
W0617 22:42:55.164981 87321 join.go:346] [preflight] WARNING: JoinControlPan control-plane flag is not set.出现错误

[WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup drived". Please follow the guide at https://kubernetes.io/docs/setup/cri/
error execution phase preflight: [preflight] Some fatal errors occurred:
   [ERROR Port-10250]: Port 10250 is in use
[preflight] If you know what you are doing, you can make a check non-fatal wit
To see the stack trace of this error execute with --v=5 or higher
[root@k8snode1 ~]# kubeadm join 192.168.118.200:6443 --token brglsa.hs4cqsalc8
> --discovery-token-ca-cert-hash sha256:dcda322dd0313ab38515b9e602d97ad970
W0617 22:43:45.510908 87425 join.go:346] [preflight] WARNING: JoinControlPan control-plane flag is not set.
[preflight] Running pre-flight checks
   [WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgrod". Please follow the guide at https://kubernetes.io/docs/setup/cri/
error execution phase preflight: [preflight] Some fatal errors occurred:
   [ERROR Port-10250]: Port 10250 is in use
[preflight] If you know what you are doing, you can make a check non-fatal wit
To see the stack trace of this error execute with --v=5 or higher

解决方案:

找到进程号:然后kill -9 pid

[root@k8snode1 ~]# netstat -ntlup|grep 10250
tcp6 0 0 :::10250 :::* LISTEN 72967/kubelet

[root@k8snode1 ~]# kill -9 75967

重新执行就成功了

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