Thanks for the explanation, that actually helps a lot (and makes me
realise that I did that for nothing ;-) )!
I'll be out of office for the next three weeks, so any attempt to
contribute will start after my vacation ;-)
Regards,
Eugen
Zitat von Mehdi Abaakouk <sil...@sileht.net>:
Hi Eugen,
Le 2016-06-29 16:30, Eugen Block a écrit :
This bug [1] describes the issue, but it seems to be a libvirt issue,
not ceilometer.
According to [2] it should be possible to retrieve those meters.
I followed ceph docs to install the rados-gateway, I integrated
keystone authentication, at least I don't get any errors regarding
authentication and swift command seems to work.
Then I added the meters described in [2] to the
/etc/ceilometer/pipeline.yaml
Ceph RBD and Ceph RadosGW are differents applications (both on top
Ceph librados API)
So from Ceilometer point of view, meters collected on each
applications are different meters, we currently have:
* instances disks IOPS meters retrieved by Ceilometer throught
libvirt. (And currently broken for rbd backed instances)
* radosgw meters retrieved by ceilometer-polling-agent by polling
the Ceph RadosGW API directly.
I believe I have completed all required steps, but I still get the
libvirt errors in ceilometer (both kvm and xen hypervisor).
If you got this error, that means you did the thing right, but it's
bugged due to [1] as you notice.
Now I'm starting to wonder if rados-gw really is the right choice
here.
Yes, rados-gw meters seems unrelated to your use-case.
Has anybody figured out a way to retrieve rbd meters with ceilometer?
That depends on the use-cases, if you want to get:
* instances disks IOPS, ceilometer-compute-agent and libvirt have to
be improved to retrieve them (that means fixing [1]).
* the raw rbd meters (image size and utilization), a new
ceilometer-polling-agent plugin needs to be written.
(A poller that stat all rbd images directly have chance to be
really really slow).
AFAICR, nobody is currently working those two points, so
contributions welcome.
Cheers,
--
Mehdi Abaakouk
mail: sil...@sileht.net
irc: sileht
--
Eugen Block voice : +49-40-559 51 75
NDE Netzdesign und -entwicklung AG fax : +49-40-559 51 77
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