[SOLVED] Remove Node from Cluster

Curt Hall

Well-Known Member
Jan 30, 2019
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I have a failed (hardware) node that won't boot and want to remove it from the cluster. I couldn't find anything here on the procedure for removing nodes from clusters.
 
the "bad" node (node 5) does not show in the list when I run
root@NorthProxmox1:~# pvecm nodes

Membership information
----------------------
Nodeid Votes Name
1 1 10.14.140.10 (local)
2 1 10.14.140.11
3 1 10.14.140.12
4 1 10.14.140.13

But it does show in the webgui:

1598995757181.png
 
the "bad" node (node 5) does not show in the list when I run
This is expected. Since the node is already off and won't come back, you are at the step where you run pvecm delnode.
 
When type in what should be the node's name (not fir sure since the first command does not give it to me), I get this error:

root@NorthProxmox1:~# pvecm nodes

Membership information
----------------------
Nodeid Votes Name
1 1 10.14.140.10 (local)
2 1 10.14.140.11
3 1 10.14.140.12
4 1 10.14.140.13
root@NorthProxmox1:~# pvecm delnode 10.14.140.15
400 Parameter verification failed.
node: invalid format - value does not look like a valid node name

pvecm delnode <node>
 
Can you show the content of the /etc/pve/corosync.conf file?
 
logging {
debug: off
to_syslog: yes
}

nodelist {
node {
name: NorthProxmox1
nodeid: 1
quorum_votes: 1
ring0_addr: 10.14.140.10
}
node {
name: proxmox2
nodeid: 2
quorum_votes: 1
ring0_addr: 10.14.140.11
}
node {
name: proxmox3
nodeid: 3
quorum_votes: 1
ring0_addr: 10.14.140.12
}
node {
name: proxmox4
nodeid: 4
quorum_votes: 1
ring0_addr: 10.14.140.13
}
node {
name: proxmox5
nodeid: 5
quorum_votes: 1
ring0_addr: 10.14.140.15
}
}

quorum {
provider: corosync_votequorum
}

totem {
cluster_name: NorthCluster1
config_version: 9
interface {
bindnetaddr: 10.14.140.10
ringnumber: 0
}
ip_version: ipv4
secauth: on
version: 2
}
 
try
pvecm delnode proxmox5
 
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