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I checked the output of systemctl corosync.status and, among other stuff it says on the upgraded node: A new membership (4.6c7) was formed. Members joined: 4 whereas on the other nodes it says: A new membership (1.6c1) was formed. Members left: 4 Since you suggested that there might be an...

I am just now looking into pve-cluster.service with corosync.service being the next in line.

Ext4 on all of them. (I think I did install PVE on ZFS a few years ago (prior to my current cluster) and this gave me some other (booting?) issues and so I refrain from using ZFS on the boot drive.) So, unfortunately, upgrading is a one way ticket for me...

It would seem so. Unfortunately, neither is an appealing choice...

Oh, okay, at the datacenter level it is set to "no" (which makes sense as I can't remember activating the firewall).

cat /etc/pve/corosync.conf logging { debug: off to_syslog: yes } nodelist { node { name: node1 nodeid: 4 quorum_votes: 1 ring0_addr: 192.168.123.6 } node { name: node2 nodeid: 3 quorum_votes: 1 ring0_addr: 192.168.123.1 } node { name: node3...

Firewall is set to 'yes' on all three nodes but no rules have been defined.

This is from the one upgraded node # pvecm status #Cluster information ------------------- Name: pvecluster Config Version: 15 Transport: knet Secure auth: on Quorum information ------------------ Date: Sun Jun 9 11:10:00 2024 Quorum provider...

I can also ssh from all of the nodes into all of the other nodes. So it doesn't seem to be an ssh certificate issue (if there is such a thing).

Would it make sense to upgrade also the other two nodes to PVE 8.2.2? I am a bit reluctant to try in case none of the nodes will be able to see the others anymore...

As per this thread, I have added all hosts to each host's /etc/hosts file: https://forum.proxmox.com/threads/one-node-cannot-see-other-nodes-in-a-cluster.97367/ Unfortunately, this does not solve my issue.

Hmm, all nodes can ping each other. So networking doesn't seem to be the issue.

So, there is no way to do this? Do I need to tear down everything and create a new cluster?

Hi, I have a three node cluster in my home lab that was running on PVE 8.1.5. Now I upgraded the first node to 8.2.2 and, after rebooting, it doesn't connect to the cluster anymore. The remaining cluster can't see the upgraded node and the upgraded node can't see the remaining cluster. Did...

Any ideas, suggestions, experiences?

Huh. That's an important question. Should have asked that before I went down that route... Unfortunately, I can't tell yet, it's still in the box.

Well, that 's the problem, isn't? I have a three node cluster. So I take the first node offline to replace the networking hardware. The remaining two nodes should be able to keep the cluster running. I restart the first node but it won't be connected to the cluster yet. Then I take the second...

Hi, I have a small home lab cluster with 3 PVE nodes each of which also serves as a Ceph node. For each, cluster sync and ceph, there is a dedicated 10gbe network (and then there is another dedicated 10gbe network to a PBS which sits outside the cluster). Now I want to upgrade the network to...

Okay, so I have all the stuff ready. Now the question is, how do I replace the network on my cluster nodes while they are parts of the clusters (PVE and Ceph)? I can't simply add in the Mellanox cards due to a lack of PCIe slots. But if I take out the 10gbe cards and put in the Mellanox cards...