Unable to remove a node from a cluster.

[ma2kz]

Hello,
I am having trouble deleting a node from a cluster.
One of the nodes that make up our cluster has started malfunctioning, and we have removed it from the cluster using the console. However, it continues to remain in the WebGUI.
I don't know if this has anything to do with it, but whenever I check the cluster configuration in the datacenter, it always shows that "/etc/pve/nodes/pve/pve-pve-ssl.pem" does not exist! ("pve" is the corrupted node that should have already been removed from the cluster.)
I would like to completely remove the corrupted node information. Can you tell me how to do that?

Commands executed​

root@mynode:~# pvecm nodes
root@mynode:~# pvecm delnode pve
root@mynode:~# cd /etc/pve/nodes/
root@mynode:/etc/pve/nodes# pvecm expected 1
root@mynode:/etc/pve/nodes# rm -rf pve
root@mynode:~# reboot
root@mynode:~# pvecm nodes

Membership information
----------------------
    Nodeid      Votes Name
         1          1 mynode (local)

root@MSI-Z170:~# pvecm status
Cluster information
-------------------
Name:             ma2kz
Config Version:   2
Transport:        knet
Secure auth:      on


Quorum information
------------------
Date:             Fri Jan 12 22:05:30 2024
Quorum provider:  corosync_votequorum
Nodes:            1
Node ID:          0x00000001
Ring ID:          1.43
Quorate:          Yes


Votequorum information
----------------------
Expected votes:   1
Highest expected: 1
Total votes:      1
Quorum:           1 
Flags:            Quorate


Membership information
----------------------
    Nodeid      Votes Name
0x00000001          1 192.168.0.21 (local)

Server Version​

root@MSI-Z170:~# pveversion -v
proxmox-ve: 8.1.0 (running kernel: 6.5.11-7-pve)
pve-manager: 8.1.3 (running version: 8.1.3/b46aac3b42da5d15)
proxmox-kernel-helper: 8.1.0
pve-kernel-6.2: 8.0.5
proxmox-kernel-6.5: 6.5.11-7
proxmox-kernel-6.5.11-7-pve-signed: 6.5.11-7
proxmox-kernel-6.2.16-20-pve: 6.2.16-20
proxmox-kernel-6.2: 6.2.16-20
pve-kernel-6.2.16-3-pve: 6.2.16-3
ceph-fuse: 17.2.6-pve1+3
corosync: 3.1.7-pve3
criu: 3.17.1-2
glusterfs-client: 10.3-5
ifupdown2: 3.2.0-1+pmx7
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-4
libknet1: 1.28-pve1
libproxmox-acme-perl: 1.5.0
libproxmox-backup-qemu0: 1.4.1
libproxmox-rs-perl: 0.3.3
libpve-access-control: 8.0.7
libpve-apiclient-perl: 3.3.1
libpve-common-perl: 8.1.0
libpve-guest-common-perl: 5.0.6
libpve-http-server-perl: 5.0.5
libpve-rs-perl: 0.8.7
libpve-storage-perl: 8.0.5
libspice-server1: 0.15.1-1
lvm2: 2.03.16-2
lxc-pve: 5.0.2-4
lxcfs: 5.0.3-pve4
novnc-pve: 1.4.0-3
proxmox-backup-client: 3.1.2-1
proxmox-backup-file-restore: 3.1.2-1
proxmox-kernel-helper: 8.1.0
proxmox-mail-forward: 0.2.2
proxmox-mini-journalreader: 1.4.0
proxmox-widget-toolkit: 4.1.3
pve-cluster: 8.0.5
pve-container: 5.0.8
pve-docs: 8.1.3
pve-edk2-firmware: 4.2023.08-2
pve-firewall: 5.0.3
pve-firmware: 3.9-1
pve-ha-manager: 4.0.3
pve-i18n: 3.1.5
pve-qemu-kvm: 8.1.2-6
pve-xtermjs: 5.3.0-3
qemu-server: 8.0.10
smartmontools: 7.3-pve1
spiceterm: 3.3.0
swtpm: 0.8.0+pve1
vncterm: 1.8.0
zfsutils-linux: 2.2.2-pve1

 

[shanreich]

pvecm only lists one node, so removing should have worked fine.

After removing a node, the configuration folder for that node will still persist in the cluster filesystem in the folder /etc/pve/nodes - if you are absolutely sure you do not need those configuration files anymore you can remove the pve folder inside /etc/pve/nodes.

Make sure that you got the path right and only remove the folder for the old node!

Afterwards the node should vanish from the Web UI

 

[ma2kz]

pvecm only lists one node, so removing should have worked fine.

After removing a node, the configuration folder for that node will still persist in the cluster filesystem in the folder /etc/pve/nodes - if you are absolutely sure you do not need those configuration files anymore you can remove the pve folder inside /etc/pve/nodes.

Make sure that you got the path right and only remove the folder for the old node!

Afterwards the node should vanish from the Web UI

Thanks for the reply.
I have deleted the directory of the failed node using the console,
but it still appears in the WebGUI. How can I resolve this issue?

root@MSI-Z170:/etc/pve/nodes# rm -rf pve
root@MSI-Z170:/etc/pve/nodes# ls -l
total 0
drwxr-xr-x 2 root www-data 0 Jan  8 17:14 MSI-Z170