Remove failed node from cluster

May 31, 2019
8
0
6
40
Hello I had a node fail and I'm trying to remove it from my cluster. when I look at pvecm however it's not there. I tried removing it from the /etc/pve/nodes directory but the only thing that did was remove the join information from my cluster. (The failed node was the original node the others joined) I have a backup of the nodes directory so I put it back and that seems to have restored the join information. When copying back the information to the nodes directory, I received an error it could not restore /etc/pve/nodes/dchv3/qemu-server/100.conf etc.. because it already exists. So I'm guessing it didn't really delete that directory even though I check to see if was gone with ls.
What would be the proper procedure to remove a failed node that's already missing from pvecm ?

root@dchv1:~# pvecm status
Cluster information
-------------------
Name: PVE
Config Version: 3
Transport: knet
Secure auth: on

Quorum information
------------------
Date: Wed Mar 24 11:16:25 2021
Quorum provider: corosync_votequorum
Nodes: 2
Node ID: 0x00000003
Ring ID: 2.16f
Quorate: Yes

Votequorum information
----------------------
Expected votes: 3
Highest expected: 3
Total votes: 2
Quorum: 2
Flags: Quorate

Membership information
----------------------
Nodeid Votes Name
0x00000002 1 192.168.130.32
0x00000003 1 192.168.130.31 (local)

I have noticed that the node still exists in the /etc/pve/corocsync.conf file
 
Last edited:
I posted too soon. I called pvecm del node (dead node name) even though it was not in the pvecm list and it worked. It removed the node from the corosync file. After that I removed the /etc/pve/nodes/(dead node name) and that got rid of it. This time it kept my cluster join information so the cluster is still intact.
 
I posted too soon. I called pvecm del node (dead node name) even though it was not in the pvecm list and it worked. It removed the node from the corosync file. After that I removed the /etc/pve/nodes/(dead node name) and that got rid of it. This time it kept my cluster join information so the cluster is still intact.
I would add that I since I had only two nodes I also had to run "pvecm expected 1" to actually delete the node (since with default 2 both would have to be online to vote on the removal) https://forum.proxmox.com/threads/r...cluster-not-ready-no-quorum.23622/post-118347
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!