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I have installed microk8s(1.24/stable) on two machines. The ip of the two machines are：172.29.99.187, 172.29.99.188. I operate the command at 172.29.99.187：microk8s add-node

Output:

From the node you wish to join to this cluster, run the following:
microk8s join 172.29.99.187:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916

Use the '--worker' flag to join a node as a worker not running the control plane, eg:
microk8s join 172.29.99.187:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916 --worker

If the node you are adding is not reachable through the default interface you can use one of the following:
microk8s join 172.29.99.187:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916
microk8s join 192.168.192.122:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916
microk8s join 172.24.0.1:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916
microk8s join 172.30.239.1:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916
microk8s join 172.17.0.1:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916

I operate the command at 172.29.99.188：

microk8s join 172.29.99.187:25000/57a191d07ce8fe360e13f4f1e9026ce8/5be428d4e916

Output:

Contacting cluster at 172.29.99.187
Connection failed. The hostname (cxsw) of the joining node does not resolve to the IP "172.29.99.188". Refusing join (400).
ya chen
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1 Answers1

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I found the solution on github：https://github.com/canonical/microk8s/issues/2967#issuecomment-1059942384

Edit /etc/hosts on the 172.29.99.188 machine,Add:

172.29.99.188 cxsw
ya chen
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