[问题已处理]-k8s报错Error from server- error dialing backend- dial tcp 172.16.20.88-10250

导语：重启服务器之后，节点连接pod报错Error from server: error dialing backend: dial tcp 172.16.20.88:10250

现象是pod都无法进入，查看报错日志就是提示Error from server: error dialing backend: dial tcp 172.16.20.88:10250。

查看节点状态 kubectl get nodes发现节点是notready

登录到节点查看kubelet服务发现kubelet报错，怀疑是修改了/etc/docker/daemon.json所影响。证实的确是修改/etc/docker/daemon.json导致

故障原因：调整了kubesphere安装的k8s的docker配置。

原配置

{"log-opts": {"max-size": "5m","max-file":"3"},"exec-opts": ["native.cgroupdriver=systemd"],"default-shm-size": "2G",
"insecure-registries": ["harbor.deepwise.com","10.10.3.5","172.28.3.5"] ,"runtimes": {"nvidia": {"path": "nvidia-container-runtime","runtimeArgs": []}}
}

故障配置

{"default-runtime": "nvidia","runtimes": {"nvidia": {"path": "/usr/bin/nvidia-container-runtime","runtimeArgs": []}}
}

调整后的配置

{"log-opts": {"max-size": "5m","max-file":"3"},"exec-opts": ["native.cgroupdriver=systemd"],
"insecure-registries": ["harbor.deepwise.com","10.10.3.5","172.28.3.5"] ,"default-runtime": "nvidia","runtimes": {"nvidia": {"path": "/usr/bin/nvidia-container-runtime","runtimeArgs": []}}
}

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[问题已处理]-k8s报错Error from server- error dialing backend- dial tcp 172.16.20.88-10250

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