Hello Yedidyah and all

I bring you a slightly new information about this issue.

If I have the node SSH port changed to something else other than 22 it is unable to fetch the fingerprint. I changed it back to 22 and it worked to fetch the fingerprint but failed again when adding the host with the same error as before. (Yes I have allowed the port in the node firewall)

Before adding the host I have also cleaned both /root/.ssh/known_host and /var/lib/ovirt-engine/.ssh/known_hosts

Regards
Fernando

Well, that's pretty much what I found on most sites about this subject but still can't find anything that points to the error (find the related logs attached).

Please note that before adding the server the Engine is not able to fetch the fingerprint and thorws the following error in the log:

2017-03-16 09:57:14,998-03 ERROR [org.ovirt.engine.core.bll.GetServerSSHKeyFingerprintQuery] (default task-54) [223c2f69-6e84-4d5c-a29d-2f828fd9466e] Could not fetch fingerprint of host 'xxxxxxxxxxxxxxxx': Failed to get the session.

The most relevant parts of the attached logs I could find were some things related to 'sharedLocks' and 'ACTION_TYPE_FAILED_OBJECT_LOCKED'.
And the error itself:

SSH error running command root@host1.fqdn.abc.net:55000:'umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MYTMP}\" > /dev/null 2>&1; rm -fr \"${MYTMP}\" > /dev/null 2>&1" 0; tar --warning=no-timestamp -C "${MYTMP}" -x &&  "${MYTMP}"/ovirt-host-deploy DIALOG/dialect=str:machine DIALOG/customization=bool:True': Command returned failure code 1 during SSH session 'root@host1.fqdn.abc.net:55000'
2017-03-16 09:58:25,505-03 ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (org.ovirt.thread.pool-6-thread-14) [3a4fb0da] Exception: java.io.IOException: Command returned failure code 1 during SSH session 'root@host1.fqdn.abc.net:55000'

Fernando



On 16/03/2017 04:15, Yedidyah Bar David wrote:

On Thu, Mar 16, 2017 at 5:24 AM, FERNANDO FREDIANI
<fernando.frediani@upx.com> wrote:

Hi folks.

I think I have been hit by the most annoying error you can get on oVirt.
I have removed a Host from Engine, re-installed it with the latest
ovirt-node-ng ISO, tried to add the freshly installed Host back to Engine
and got the following error:

"Command returned failure code 1 during SSH session"

The host has the same FQDN as before and I have cleaned the SSH from the
known_hosts file in the Engine before trying to add it on the web interface.

I have also tried this process with 2 different ISO files:
- ovirt-node-ng-installer-ovirt-4.1-pre-2017030911.iso
- ovirt-node-ng-installer-ovirt-4.1-pre-2017031104.iso

And the Engine is version 4.1.1.4-1

Have searched for this error and there are a lot of people affected but not
a single solution solves it.

Please give some light.

Please check/share /var/log/ovirt-engine/engine.log on the engine
machine.

Best,

Thanks
Fernando

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