<div dir="ltr">Hello Misak, <div><br></div><div>This error hints that your ovn databases are not up (or at least can not be connected to).</div><div>Could you please check if the following command gives any output:</div><div><br></div><div> ps -ef|grep 'ovnsb_db\|ovnnb_db'<br></div><div><br></div><div>The databases can be started (if not active) using:</div><div> /usr/share/openvswitch/scripts/ovn-ctl start_ovsdb<br></div><div><br></div><div>Could you please also check the content of:</div><div><span style="color:rgb(80,0,80);font-size:12.8px"> /var/run/openvswitch/</span><br></div><div><br></div><div>The filenames don't look normal (usually they do not contain any numbers as part of them), please give me some time to check this.</div><div><br></div><div>Thanks,<br>Marcin</div><div><br></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Dec 27, 2017 at 3:44 PM, Mor Kalfon <span dir="ltr"><<a href="mailto:mkalfon@redhat.com" target="_blank">mkalfon@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Hello Misak,</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif"></div><div class="gmail_default" style="font-family:verdana,sans-serif">Could you please file a bug about those error messages that you receive from OVS?</div><div class="gmail_default" style="font-family:verdana,sans-serif">You can use the log collector tool (<a href="https://www.ovirt.org/documentation/admin-guide/chap-Utilities/#the-log-collector-tool" target="_blank">https://www.ovirt.org/documen<wbr>tation/admin-guide/chap-<wbr>Utilities/#the-log-collector-<wbr>tool</a>)</div><div class="gmail_default" style="font-family:verdana,sans-serif">which gathers all the required logs for us to investigate this issue.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Thanks for reporting this issue!</div></div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Wed, Dec 27, 2017 at 11:03 AM, Misak Khachatryan <span dir="ltr"><<a href="mailto:kmisak@gmail.com" target="_blank">kmisak@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>On Wed, Dec 27, 2017 at 12:42 PM, Dan Kenigsberg <<a href="mailto:danken@redhat.com" target="_blank">danken@redhat.com</a>> wrote:<br>
> On Wed, Dec 27, 2017 at 8:49 AM, Misak Khachatryan <<a href="mailto:kmisak@gmail.com" target="_blank">kmisak@gmail.com</a>> wrote:<br>
>> Hi,<br>
>><br>
>> It's not on log file, it's from automatic email sent by cron daemon.<br>
>> This one from logrotate.<br>
><br>
> Would you file a bug about this daily logrotate spam?<br>
><br>
<br>
</span>Sure, will do.<br>
<span><br>
>><br>
>> I'd like to migrate my network to OVS, but as i can't find any guide<br>
>> for that, it's a bit scary.<br>
><br>
> Why would you like to do that? OVN is useful for big deployments, that<br>
> have many isolated networks. It is not universally recommended, as it<br>
> uses more CPU.<br>
><br>
<br>
</span>No particular reason, thought that will be future in oVIRT networking,<br>
also i work in relatively big ISP with many PoP and DCs in many<br>
cities. And I'm interested to try it some time.<br>
<span><br>
>><br>
>> Best regards,<br>
>> Misak Khachatryan<br>
>><br>
>><br>
>> On Tue, Dec 26, 2017 at 3:29 PM, Dan Kenigsberg <<a href="mailto:danken@redhat.com" target="_blank">danken@redhat.com</a>> wrote:<br>
>>> On Tue, Dec 26, 2017 at 8:35 AM, Misak Khachatryan <<a href="mailto:kmisak@gmail.com" target="_blank">kmisak@gmail.com</a>> wrote:<br>
>>>> Hi,<br>
>>>><br>
>>>> After upgrade to 4.2 I started getting this error from engine:<br>
>>>><br>
>>>> /etc/cron.daily/logrotate:<br>
>>>><br>
>>>> 2017-12-25T23:12:02Z|00001|uni<wbr>xctl|WARN|failed to connect to<br>
>>>> /var/run/openvswitch/ovnnb_db.<wbr>19883.ctl<br>
>>>> ovs-appctl: cannot connect to<br>
>>>> "/var/run/openvswitch/ovnnb_db<wbr>.19883.ctl" (No such file or directory)<br>
>>>> 2017-12-25T23:12:02Z|00001|uni<wbr>xctl|WARN|failed to connect to<br>
>>>> /var/run/openvswitch/ovnsb_db.<wbr>19891.ctl<br>
>>>> ovs-appctl: cannot connect to<br>
>>>> "/var/run/openvswitch/ovnsb_db<wbr>.19891.ctl" (No such file or directory)<br>
>>>><br>
>>>><br>
>>>> Seems harmless as i don't use OVS, but how to fix it?<br>
>>><br>
>>> By default, ovirt-4.2 installs and configure OVN (which uses OVS). You<br>
>>> can turn it off on Engine host by running<br>
>>> systemctl stop ovirt-provider-ovn ovn-northd openvswitch<br>
><br>
> did you try that?<br>
><br>
<br>
</span>No, but is correct way to disable it completely?<br>
<span><br>
>>><br>
>>> but I'd appreciate your help to understand in which log file do you<br>
>>> see these warnings?<br>
><br>
>>> Have you already disabled openvswitch?<br>
><br>
> have you ^^ ?<br>
<br>
</span>No, what is a correct way to do it?<br>
</blockquote></div><br><br clear="all"><br></div></div><span class="HOEnZb"><font color="#888888">-- <br><div class="m_-7155178606364316848gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><div><font size="2"><span style="font-family:verdana,sans-serif">Mor Kalfon</span><br></font></div><font size="2"><span style="font-family:verdana,sans-serif">RHV Networking Team<br><span>Red Hat IL-Raanana</span></span></font></div><div><font size="2"><span style="font-family:verdana,sans-serif">Tel: <a href="tel:+972%2054-651-4148" value="+972546514148" target="_blank">+972-54-6514148</a></span></font></div><div><font size="2"><span style="font-family:verdana,sans-serif"><br></span></font></div></div></div></div></div></div></div></div></div></div>
</font></span></div>
</blockquote></div><br></div>