Proxmox 5 - configuring cluster fails when adding nodes

[Andreas G]

Hallo,
I'm a completly newbee in working with proxmox. For testing I've set up 3 servers.
Till creating a cluster everything was fine.

pvecm create cluster

seemed to work without an problem.
The comand

pvecm status

showes:

Quorum information
------------------
Date: Thu Aug 10 19:32:52 2017
Quorum provider: corosync_votequorum
Nodes: 1
Node ID: 0x00000001
Ring ID: 1/4
Quorate: Yes

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

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

Everytime when I'm trying to use

pvecm add node2

following errors apear:

detected the following error(s):
* authentication key '/etc/corosync/authkey' already exists
* cluster config '/etc/pve/corosync.conf' already exists
* corosync is already running, is this node already in a cluster?!

All servers are new installations and have never been added to an cluster before.
Can you give me an hint what is wrong?
Thanks for every help!

 

[udo]

Hi,
you must be on the new node (i assume node2) and give an node of the cluster as argument, like

pvecm add clusternode

Udo

 

[Andreas G]

Hi,
thx for your fast answer.
If I do this from node2 there is this output:

pvecm add node1
The authenticity of host 'node11 (***.***.***.***)' can't be established.
ECDSA key fingerprint is SHA256:UPksc6CGKNqeXGCX4jUtLuiOe/Px2pOR8FdTwb4QHcg.
Are you sure you want to continue connecting (yes/no)? yes
root@node1's password:
copy corosync auth key
stopping pve-cluster service
backup old database
waiting for quorum...

Then the only way to get out of this is to terminate the process.

At node1 is this the status now:

pvecm status
Quorum information
------------------
Date:             Thu Aug 10 22:22:18 2017
Quorum provider:  corosync_votequorum
Nodes:            1
Node ID:          0x00000001
Ring ID:          1/4
Quorate:          No

Votequorum information
----------------------
Expected votes:   2
Highest expected: 2
Total votes:      1
Quorum:           2 Activity blocked
Flags:           

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

This is why I'm rotating in an circle since hours.

 

[dietmar]

Seems there is a problem with multicast packages in your network.

See https://pve.proxmox.com/wiki/Multicast_notes