<div dir="ltr">Hello, I am trying to apply suggested patches but after applying some python error codes do not allow neutron services to start.<div dir="auto">Since my python skill is poor, I wonder if that patches are for python3.</div><div dir="auto">I am on centos 7 and (probably???) patches are for centos 8.</div><div dir="auto">I also wonder if it possible to upgrade a centos 7 train to centos 8 train without reinstalling all nodes.</div><div dir="auto">This could be important for next release upgrade (ussuri, victoria and so on).</div><font color="#888888"><div dir="auto">Ignazio</div></font></div><div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno ven 12 mar 2021 alle ore 23:44 Sean Mooney <<a href="mailto:smooney@redhat.com" target="_blank">smooney@redhat.com</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Fri, 2021-03-12 at 08:13 +0000, Tobias Urdin wrote:<br>
> Hello,<br>
> <br>
> If it's the same as us, then yes, the issue occurs on Train and is not completely solved yet.<br>
there is a downstream bug trackker for this<br>
<br>
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1917675" rel="noreferrer" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1917675</a><br>
<br>
its fixed by a combination of 3 enturon patches and i think 1 nova one<br>
<br>
<a href="https://review.opendev.org/c/openstack/neutron/+/766277/" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/neutron/+/766277/</a><br>
<a href="https://review.opendev.org/c/openstack/neutron/+/753314/" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/neutron/+/753314/</a><br>
<a href="https://review.opendev.org/c/openstack/neutron/+/640258/" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/neutron/+/640258/</a><br>
<br>
and <br>
<a href="https://review.opendev.org/c/openstack/nova/+/770745" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/nova/+/770745</a><br>
<br>
the first tree neutron patches would fix the evauate case but break live migration<br>
the nova patch means live migration will work too although to fully fix the related<br>
live migration packet loss issues you need<br>
<br>
<a href="https://review.opendev.org/c/openstack/nova/+/747454/4" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/nova/+/747454/4</a><br>
<a href="https://review.opendev.org/c/openstack/nova/+/742180/12" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/nova/+/742180/12</a><br>
to fix live migration with network abckend that dont suppor tmultiple port binding<br>
and <br>
<a href="https://review.opendev.org/c/openstack/nova/+/602432" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/nova/+/602432</a> (the only one not merged yet.)<br>
for live migrateon with ovs and hybridg plug=false (e.g. ovs firewall driver, noop or ovn instead of ml2/ovs.<br>
<br>
multiple port binding was not actully the reason for this there was a race in neutorn itslef that would have haapend<br>
even without multiple port binding between the dhcp agent and l2 agent.<br>
<br>
some of those patches have been backported already and all shoudl eventually make ti to train the could be brought to stine potentially<br>
if peopel are open to backport/review them.<br>
<br>
<br>
> <br>
> <br>
> Best regards<br><br><br><br><br><br><br><br>
</blockquote></div></div>