Connection timed out (595) after changing IP of the nodes

Sep 14, 2020
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I am creating a cluster with some nodes. Initially, the nodes were installed separately in an own 172.16.0.0/16 installation test network. There was no Cluster until then, the nodes worked alone.

So, I changed the configuration of the nodes to three definitive networks, 172.17.0.0/16 (management), 10.10.0.0/16 (Corosync link0) and 10.20.0.0/16 (Corosync link1); The three networks do not communicate with each other, as they are on separate physical switches and have no connection between them. So there is logical separation between the networks, but there is also physical separation between them. But of course, each node can communicate with the other node, on any of the networks.

So, I tried to create the Cluster. The first node created the Cluster normally, but when adding the other nodes, I received an error message. And researching, I realized that I should also change the old test network address of each node that was in /etc/hosts to the new network address.

So, I made the change manually and tried to add the nodes again. Then it worked!

But it started showing an error when it was time for a node to access the other via SSH or even navigating through the GUI. Then I realized that I would have to recreate the certificates. I used pvecm updatecerts -f on all terminals.

Apparently it works for a short time and then, only the main node remains accessing all. The other nodes stop accessing each other. Presenting error 595 (timed out)

I use Proxmox 6.3.

After changing the management IP address of the nodes, is it possible to create a cluster with them? Would I have something special to do first?

What could it be?
 
hi,

Have you rebooted all nodes after changed the IP? also please post the output of:

Code:
/etc/network/interfaces
/etc/hosts
/etc/pve/corosync.conf
 

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