somtime migration fail

[Paolo_Bernardoni]

Hi, sometime, randomly, in proxmox 8.4.1 receive that error message during vm migration (all node upgraded).
my cluster migrate from proxmox 7 to 8.

task started by HA resource agent
2025-04-16 12:33:47 use dedicated network address for sending migration traffic (10.10.11.57)
2025-04-16 12:33:47 starting migration of VM 165 to node 'proxmox57' (10.10.11.57)
2025-04-16 12:33:47 starting VM 165 on remote node 'proxmox57'
2025-04-16 12:34:05 start remote tunnel
Use of uninitialized value $ver in pattern match (m//) at /usr/share/perl5/PVE/Tunnel.pm line 182, <GEN205> line 1.
2025-04-16 12:34:06 tunnel still running - terminating now with SIGTERM
2025-04-16 12:34:07 ERROR: online migrate failure - can't open tunnel - no quorum on target node
2025-04-16 12:34:07 aborting phase 2 - cleanup resources
2025-04-16 12:34:07 migrate_cancel
2025-04-16 12:34:12 ERROR: migration finished with problems (duration 00:00:25)
TASK ERROR: migration problems

suggestions ?

thank you
Paolo

 

[fba]

Hi,

2025-04-16 12:34:07 ERROR: online migrate failure - can't open tunnel - no quorum on target node

Seems like the cluster is not healthy at time of your migration attempt.
What's the output of pvecm status on source and on target node?

 

[Paolo_Bernardoni]

source node:
root@proxmox56:~# pvecm status
Cluster information
-------------------
Name: Proxmox7
Config Version: 11
Transport: knet
Secure auth: on

Quorum information
------------------
Date: Wed Apr 16 16:58:23 2025
Quorum provider: corosync_votequorum
Nodes: 6
Node ID: 0x00000005
Ring ID: 3.fca
Quorate: Yes

Votequorum information
----------------------
Expected votes: 6
Highest expected: 6
Total votes: 6
Quorum: 4
Flags: Quorate

Membership information
----------------------
Nodeid Votes Name
0x00000003 1 10.10.10.54
0x00000004 1 10.10.10.55
0x00000005 1 10.10.10.56 (local)
0x00000006 1 10.10.10.57
0x00000007 1 10.10.10.52
0x00000008 1 10.10.10.53

destination node:
root@proxmox57:~# pvecm status
Cluster information
-------------------
Name: Proxmox7
Config Version: 11
Transport: knet
Secure auth: on

Quorum information
------------------
Date: Wed Apr 16 16:58:35 2025
Quorum provider: corosync_votequorum
Nodes: 6
Node ID: 0x00000006
Ring ID: 3.fca
Quorate: Yes

Votequorum information
----------------------
Expected votes: 6
Highest expected: 6
Total votes: 6
Quorum: 4
Flags: Quorate

Membership information
----------------------
Nodeid Votes Name
0x00000003 1 10.10.10.54
0x00000004 1 10.10.10.55
0x00000005 1 10.10.10.56
0x00000006 1 10.10.10.57 (local)
0x00000007 1 10.10.10.52
0x00000008 1 10.10.10.53

After the error i try again and migratin run ok.
Paolo

 

[fba]

This earlier error seems to be unusual. There might be some issue with the ssh tunnel.

Use of uninitialized value $ver in pattern match (m//) at /usr/share/perl5/PVE/Tunnel.pm line 182, <GEN205> line 1.

But I haven't seen this one before.
Does this happen on random nodes or are the same nodes involved always?

It might be advisable to create an entry at https://bugzilla.proxmox.com/