openstack team mailing list archive

[Mark McLoughlin <markmc@xxxxxxxxxx>]

Hey,

On Tue, 2012-05-01 at 23:05 +0200, Loic Dachary wrote:
> On 05/01/2012 06:13 PM, Mark McLoughlin wrote:
> > Hi Loic,
> >
> > On Mon, 2012-04-30 at 12:15 +0200, Loic Dachary wrote:
> >   - I agree that we don't want to go too far with aggregation and lose 
> >     useful data like which instances have been running as opposed to 
> >     just how many instance minutes a given tenant has consumed
> >
> >     Another aspect of aggregation to think about is aggregation over 
> >     time - e.g. I might like to see my hourly network usage has varied 
> >     over the last week, or how my daily usage has varied over the last 
> >     month, but I probably don't care so much about my hourly usage on a 
> >     specific day 3 months ago
> >
> >     oVirt's equivalent of a metering service does this kind of 
> >     aggregation as follows:
> >
> >       http://www.ovirt.org/wiki/Ovirt_DWH
> >
> >         * Sample data is collected at the end of every minute and is
> >           kept for up to 48 hours.
> >         * Hourly level is aggregated every hour for the hour before 
> >           last and is kept for 2 months.
> >         * Daily level is aggregated every day for the day before last
> >           and is kept for 5 years. 
> Where can I read a description of the corresponding database ?

Here FWIW: http://goo.gl/3Bqct

Cheers,
Mark.