Hi Arne,
thanks for your answer. I have to admit i screwed it up myself: i built
a backup system this week and mixed up Cinder versions, in version
11.0.1 the problem seems to be definitely fixed, no need for manual
intervention.
matthias
Am 2017-11-17 um 15:16 schrieb Arne Wiebalck:
Hi Matthias,
This may be https://bugs.launchpad.net/cinder/+bug/1704106.
In our deployment it was necessary to disable the the gathering of
the provisioning stats and we simply commented it out:
#self._get_usage_info()
in def _update_volume_stats(self) from cinder/volume/drivers/rbd.py
HTH,
Arne
On 17 Nov 2017, at 13:55, Matthias Leopold <matthias.leop...@meduniwien.ac.at>
wrote:
Hi,
we are running a Cinder Pike instance with Ceph (luminous) backend for use with oVirt (not
openstack). We are experiencing the "cinder-volume causes high CPU load" issue. In Cinder
11.0.0 we could successfully apply the fix mentioned in
https://ask.openstack.org/en/question/110709/ocata-cinder-volume-causes-high-cpu-load-ceph-backend/.
In Cinder 11.0.1 /usr/lib/python2.7/site-packages/cinder/volume/drivers/rbd.py changed, but the
high CPU load problem reappeared. I tried changing "report_dynamic_total_capacity"
(mentioned in the changelog), but it didn't make a difference. Has anyone seen/fixed this?
thx
matthias
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--
Arne Wiebalck
CERN IT
--
Matthias Leopold
IT Systems & Communications
Medizinische Universität Wien
Spitalgasse 23 / BT 88 /Ebene 00
A-1090 Wien
Tel: +43 1 40160-21241
Fax: +43 1 40160-921200
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