PVE cluster communication failed when I changed PVE nodes IP address

[caocao]

Hi guys, When I changed the IP addresses of all nodes in the PVE cluster, I found that the PVE cluster communication failed.
before updating:
Node1:192.168.100.101,Node2:192.168.100.102
after updating:
Node1:172.16.100.101,Node2:172.16.100.102

After the IP address is modified successfully, the network communication of the virtual machine in PVE is normal, but the cluster communication fails. I guess it is because the cluster communication configuration still uses the old IP address instead of the newly modified IP address.

Can anyone tell me how to solve this problem? Thanks a lot

 

[Hannes Laimer]

Hey,

did you update[1] /etc/pve/corosync.conf? Also take a look at [2], that should walk you through how to update the corosync config properly, since it is a little involved.

For future reference the easiest way would probably be to add a second link with the new IP, then deleting the old one.

[1] https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_configuration
[2] https://forum.proxmox.com/threads/corosync-cluster-problems-help.55856/#post-257275

 

[caocao]

thanks a lot. Let me check the doc above and then reply you when I have question even