Shulou(Shulou.com)06/02 Report--

First, the environment prepares 172.16.8.101 k8s-master01172.16.8.102 k8s-master02172.16.8.103 k8s-master03172.16.8.104 k8s-master04172.16.8.105 k8s-master05172.16.8.106 k8s-master06#harbor172.16.8.201 k8s-node011 and upgrades the kernel CentOS 7.x. There are some Bugs in the 3.10.x kernel, which leads to the instability of Docker and Kubernetes. For example, the higher version of docker (after 1.13) enables the kernel memory account function supported by the 3.10 kernel lab (cannot be turned off), which will lead to cgroup memory leak when the node pressure is as high as starting and stopping the container frequently. A leak in the network device reference count can lead to an error similar to: "kernel:unregister_netdevice: waiting for eth0 to become free." Usage count = 1 "; https://blog.51cto.com/10880347/2420861https://blog.csdn.net/xiegh3014/article/details/961922332, Settings / etc/hostscat > > / etc/hosts

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