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<div class="moz-cite-prefix">On 13/01/2021 10:37, Christian Rohmann
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:a454794a-5990-d897-c737-00cb98ec3563@inovex.de">I wrote
a tiny patch to add the Ceph RDB feature of fast-diff to backups
created by cinder-backup:
<br>
<br>
* <a class="moz-txt-link-freetext"
href="https://review.opendev.org/c/openstack/cinder/+/766856/"
moz-do-not-send="true">https://review.opendev.org/c/openstack/cinder/+/766856/</a>
<br>
<br>
<br>
Could someone please take a peek and let me know of this is
sufficient to be merged?
</blockquote>
<p><br>
</p>
<p>This change was already merged to master and I now created
cherry-picks / backports to victoria
(<a class="moz-txt-link-freetext" href="https://review.opendev.org/c/openstack/cinder/+/782917">https://review.opendev.org/c/openstack/cinder/+/782917</a>) and
ussuri (<a class="moz-txt-link-freetext" href="https://review.opendev.org/c/openstack/cinder/+/782929">https://review.opendev.org/c/openstack/cinder/+/782929</a>).<br>
<span><span class="text"><span class="name">Also Andrey Bolgov did
create yet another backport of this feaure down to
stable/train (</span></span></span><a class="moz-txt-link-freetext" href="https://review.opendev.org/c/openstack/cinder/+/784041">https://review.opendev.org/c/openstack/cinder/+/784041</a>).<br>
</p>
<p>While the cherry-pick onto the stable/victoria branch does verify
fine with Zuul (only need review to be merged), the
cinder-plugin-ceph-tempest tests fail for ussuri and also train.<br>
</p>
<p>
<blockquote type="cite">
<pre title="stdout">Stdout: 'RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable volumes/volume-081e9c22-21f3-4585-a2fe-1caed098052b object-map fast-diff".\nIn some cases useful info is found in syslog - try "dmesg | tail".\n'
Stderr: 'rbd: sysfs write failed\nrbd: map failed: (6) No such device or address\n'</pre>
</blockquote>
<br>
Could anybody give me a hint on why this might be?</p>
<p><br>
</p>
<p>Also is there any other process to follow for backports than to
create a cherry-pick from the following release down and wait for
review?</p>
<p><br>
</p>
<p><br>
</p>
<p>Regards</p>
<p><br>
</p>
<p>Christian<br>
</p>
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