ERROR: migration aborted: Can't connect to destination address using public key

[kalleyne]

Good day.

We are using Proxmox VE 2.3 in a cluster with 12 nodes. Generally, VM migrations seem to work but we are having a problem migrating VMs from node 10 to other nodes like node 11 (10.199.0.111).

Jun 06 19:46:11 # /usr/bin/ssh -o 'BatchMode=yes' root@10.199.0.111 /bin/true
Jun 06 19:46:11 Host key verification failed.
Jun 06 19:46:11 ERROR: migration aborted (duration 00:00:00): Can't connect to destination address using public key
TASK ERROR: migration aborted

I had to use the following commands on node 10 a couple days ago because "pvecm add 10.199.0.101" would fail with "unable to create directory '/etc/pve/priv' - file exists":
pvecm updatecerts
/etc/init.d/apache2 restart

This seemed to fix things where apache would start on boot up without errors.

Now, I'm not sure why migrations are failing. Any ideas on how I should proceed?

Thanks.

 

[dietmar]

Please test if you can ssh from node 10 to node 11 without user interaction using public key.

node-10# ssh 10.199.0.111

 

[kalleyne]

Yes, ssh to 10.199.0.111 works just fine.

Any additional steps that I should take?

Thanks much.

 

[kalleyne]

Just a clarification, ssh from node 10 to 11 without user interaction works fine.

 

[kalleyne]

More details: There was some light interaction when I made the initial ssh connection from node 10 to 11:

root@proxmox10:~# ssh 10.199.0.111
The authenticity of host '10.199.0.111 (10.199.0.111)' can't be established.
RSA key fingerprint is 10:88:62:e7:59:4a:f8:2b:dd:68:b2:e0:ac:70:e3:d9.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.199.0.111' (RSA) to the list of known hosts.

Repeated attempts to ssh from node 10 to 11 now works flawlessly,

 

[kalleyne]

Very good.

We retested VM migration from node 10 to 11. Works correctly now.
Thanks for the assistance.