Hi Artem,

Thanks for the log.

It seems that this error message appears quite a lot:

2019-06-11 12:10:35,283+0300 ERROR (MainThread) [root] Panic: Connect to supervdsm service failed: [Errno 2] No such file or directory (panic:29)
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 86, in _connect
self._manager.connect, Exception, timeout=60, tries=3)
File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 58, in retry
return func()
File "/usr/lib64/python2.7/multiprocessing/managers.py", line 500, in connect
conn = Client(self._address, authkey=self._authkey)
File "/usr/lib64/python2.7/multiprocessing/connection.py", line 173, in Client
c = SocketClient(address)
File "/usr/lib64/python2.7/multiprocessing/connection.py", line 308, in SocketClient
s.connect(address)
File "/usr/lib64/python2.7/socket.py", line 224, in meth
return getattr(self._sock,name)(*args)
error: [Errno 2] No such file or directory

Can you please verify that the 'supervdsmd.service' is running?

Regards,

Shani Leviim

On Tue, Jun 11, 2019 at 3:04 PM Artem Tambovskiy <artem.tambovskiy@gmail.com> wrote:

Hi Shani,

yes, you are right - I can do ssh form aby to any hosts in the cluster. vdsm.log attached.
I have tried to restart vdsm manually and even done a host restart several times with no success.
Host activation fails all the time ...

Thank you in advance for your help!
Regard,
Artem

On Tue, Jun 11, 2019 at 10:51 AM Shani Leviim <sleviim@redhat.com> wrote:
Hi Artem,
According to oVirt documentation [1], hosts on the same cluster should be reachable from one to each other.

Can you please share your vdsm log?
I suppose you do manage to ssh that inactive host (correct me if I'm wrong).
While getting the vdsm log, maybe try to restart the network and vdsmd services on the host.

Another thing you can try on the UI is putting the host on maintenance and then activate it.

[1] https://www.ovirt.org/documentation/admin-guide/chap-Clusters.html#introduction-to-clusters

Regards,
Shani Leviim

On Mon, Jun 10, 2019 at 4:42 PM Artem Tambovskiy <artem.tambovskiy@gmail.com> wrote:
Hello,

May I ask you for and advise?
I'm running a small oVirt cluster and couple of months ago I decided to do an upgrade from oVirt 4.2.8 to 4.3 and having an issues since that time. I can only guess what I did wrong - probably one of the problems that I haven't switched the cluster from iptables to firewalld. But this is just my guess.

The problem is that I have upgraded the engine and one host, and then I done an upgrade of second host I can't bring it to active state. Looks like VDSM can't detect the network and fails to start. I even tried to reinstall the hosts from UI (I have seen that the packages being installed) but again, VDSM doesn't startup at the end and reinstallation fails.

Looking at hosts process list I see script wait_for_ipv4s hanging forever.

vdsm 8603 1 6 16:26 ? 00:00:00 /usr/bin/python /usr/share/ovirt-hosted-engine-ha/ovirt-ha-agent
root 8630 1 0 16:26 ? 00:00:00 /bin/sh /usr/libexec/vdsm/vdsmd_init_common.sh --pre-start
root 8645 8630 6 16:26 ? 00:00:00 /usr/bin/python2 /usr/libexec/vdsm/wait_for_ipv4s
root 8688 1 30 16:27 ? 00:00:00 /usr/bin/python2 /usr/share/vdsm/supervdsmd --sockfile /var/run/vdsm/svdsm.sock
vdsm 8715 1 0 16:27 ? 00:00:00 /usr/bin/python /usr/share/ovirt-hosted-engine-ha/ovirt-ha-broker

The all hosts in cluster are reachable from each other ... That could be the issue?

Thank you in advance!
--
Regards,
Artem
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--
Regards,
Artem