Changing IP on node of Cluster?

[killmasta93]

Hi,
I was wondering if someone could lend me a hand as i need to change one of nodes its IP.
i did the following on the node im moving

edit the corosync and changed the ring0_addr
then on the webGUI changed the IP
and on the node im moving edited /etc/hosts and changed the IP and rebooted all 3 servers but the node i changed the IP i can access the WebGUI but wont raise the vm because the cluster is not working
any ideas?

Thank you

 

[tim]

Most likely the cluster has no quorum, did you follow the steps described in our admin guide on how to edit the corosync config?
https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_corosync_configuration

 

[killmasta93]

Thanks for the reply, correct i check those configs and i see the new IP of node.
i checked the logs on the new node IP and found this

May 06 22:21:01 prometheus2 corosync[2323]:  [TOTEM ] Invalid packet data
May 06 22:21:01 prometheus2 corosync[2323]: error   [TOTEM ] Digest does not match
May 06 22:21:01 prometheus2 corosync[2323]: alert   [TOTEM ] Received message has invalid digest... ignoring.
May 06 22:21:01 prometheus2 corosync[2323]: alert   [TOTEM ] Invalid packet data
May 06 22:21:01 prometheus2 corosync[2323]:  [TOTEM ] Digest does not match
May 06 22:21:01 prometheus2 corosync[2323]:  [TOTEM ] Received message has invalid digest... ignoring.
May 06 22:21:01 prometheus2 corosync[2323]:  [TOTEM ] Invalid packet data
May 06 22:21:01 prometheus2 corosync[2323]: error   [TOTEM ] Digest does not match
May 06 22:21:01 prometheus2 corosync[2323]: alert   [TOTEM ] Received message has invalid digest... ignoring.
lines 149-189

 

[tim]

please post your network & corosync config and the output of:

# pvecm status

Do you run more than one cluster in the same network? Your log indicates that something in your network is sending data to the same ip/port, do you run your cluster with a public ip?

 

[killmasta93]

Thanks for the reply, only have 1 cluster
this is the principal cluster

Quorum information
------------------
Date:             Tue May  7 22:53:14 2019
Quorum provider:  corosync_votequorum
Nodes:            2
Node ID:          0x00000001
Ring ID:          2/432
Quorate:          Yes

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

Membership information
----------------------
    Nodeid      Votes Name
0x00000002          1 192.168.100.251
0x00000001          1 192.168.100.253 (local)

and this is the node i changed the ip

Quorum information
------------------
Date:             Tue May  7 22:54:19 2019
Quorum provider:  corosync_votequorum
Nodes:            1
Node ID:          0x00000003
Ring ID:          3/12
Quorate:          No

Votequorum information
----------------------
Expected votes:   3
Highest expected: 3
Total votes:      1
Quorum:           2 Activity blocked
Flags:           

Membership information
----------------------
    Nodeid      Votes Name
0x00000003          1 192.168.3.201 (local)

 

[tim]

Your node is in a different subnet, that's one of the things you shouldn't do.
Please read the dedicated cluster network section carefully and take a look at the network requirements:
https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_cluster_network

 

[killmasta93]

Thanks for the reply even though it's on a vlan? Both nodes can ping each other under 1ms