corosync/totem question

[M-SK]

Hello,

We have a failed Proxmox 4.4->5.0 upgraded node that makes all cluster nodes (remaining 4) to fence themselves whenever it comes online. Seems I will have to reinstall the node for whatever reason.

I've just noticed something strange in corosync.conf while backing up the configuration:

cat /etc/pve/corosync.conf
logging {
debug: off
to_syslog: yes
}

nodelist {
node {
name: nthl12
nodeid: 1
quorum_votes: 1
ring0_addr: nthl12
}

node {
name: ntvl18
nodeid: 2
quorum_votes: 1
ring0_addr: ntvl18
}

node {
name: nthl11
nodeid: 4
quorum_votes: 1
ring0_addr: nthl11
}

node {
name: nthl03
nodeid: 3
quorum_votes: 1
ring0_addr: nthl03
}

node {
name: nthl16
nodeid: 5
quorum_votes: 1
ring0_addr: nthl16
}

}

quorum {
provider: corosync_votequorum
}

totem {
cluster_name: px
config_version: 7
ip_version: ipv4
secauth: on
version: 2
interface {
bindnetaddr: 172.20.10.7
ringnumber: 0
}

}

The Totem bindnetaddr node/IP was removed from the cluster some time ago. Should I remedy this and how?

Second question - can I "pvecm delnode" the failing node (the one that destroys quorum and fails SAN multipaths after upgrade whenever it's up) , remove auth key and reinstall/join cleanly under same name and IP?

Thanks!

 

[Alwin]

The bindnetaddr needs to exist and needs to be set on the net address where corosync traffic should run. This is set when pvecm create <CLUSTERNAME> is run.

Yes, you can join the node with the same name and IP after reinstall, if you have deleted the node from the cluster.
https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_remove_a_cluster_node

 

[M-SK]

The bindnetaddr needs to exist and needs to be set on the net address where corosync traffic should run. This is set when pvecm create <CLUSTERNAME> is run.

Yes, you can join the node with the same name and IP after reinstall, if you have deleted the node from the cluster.
https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_remove_a_cluster_node

Trouble is, the node that create was run on was removed. Should I change this or let it be?