[Openstack] [metering] Cinder usage data retrieval

John Griffith john.griffith at solidfire.com
Wed Jun 20 18:23:02 UTC 2012


On Wed, Jun 20, 2012 at 12:15 PM, Nick Barcet <nick.barcet at canonical.com> wrote:
> On 06/20/2012 07:26 PM, John Griffith wrote:
>> On Wed, Jun 20, 2012 at 10:53 AM, Nick Barcet <nick.barcet at canonical.com> wrote:
>>> Hello John (or anyone else working on cinder),
>>>
>>> As part of the ceilometer project¹, we're working on usage data
>>> retrieval from various OpenStack components. One of them is Cinder.
>>> We're targeting Folsom for the first release, therefore it seems
>>> important for both projects to be able to work together, this is why
>>> we're bringing ceilometer to your attention and asking for advices. :)
>>>
>>> What we want is to retrieve the maximum amount of data, so we can meter
>>> things, to bill them in the end. For now and for Cinder, this would
>>> first include (per user/tenant):
>>> - the amount of reserved volume space
>>> - the amount of used volume space
>>> - the number of volumes
>>> but we'll need probably more in a near future.
>>>
>>> Do you have any advice regarding integration of Ceilometer and Cinder
>>> together? What would be a stable interface we could rely on that would
>>> be independent of the backend?
>>>
>>> Thanks in advance,
>>>
>>> Regards,
>>>
>>> ¹  http://launchpad.net/ceilometer
>>> --
>>> Nick Barcet <nick.barcet at canonical.com>
>>> aka: nijaba, nicolas
>>>
>>
>> Hi Nick,
>>
>> We should chat about how things are shaping up so far and how you're
>> implementing things on the other sides (consistency where
>> practical/possible).  Also, it sort of depends on the architecture and
>> use model details of Ceilometer, which I hate to admit but I'm not
>> really up to speed on.
>>
>> My first reaction/thought is the best most appropriate place to tie in
>> is via the python-cinderclient.  There would be a number of ways to
>> obtain some of this info, whether deriving it or maybe some extensions
>> to obtain things directly.
>
> Sounds great.  We have our weekly meeting on Thurdays at 4PM UTC [1]
> which you would be welcome to join, or I can set up a bridge for us a
> phone chat.  Let me know what you would prefer.
>
> [1] http://wiki.openstack.org/Meetings/MeteringAgenda
>
> Cheers,
> Nick
>
>

I'll drop in on irc tomorrow...

Thanks,
John




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