Open Stack

Robert Collins wrote:
> On Fri, May 4, 2012 at 5:27 AM, Turner, Whit (Cloud Services)
> <Whit.Turner at hp.com> wrote:
>> Hi - I think a flexible aggregation scheme is needed; the levels of
>> aggregation available should be definable in the meter independent of the
>> sources of usage data themselves. If invoices need to be very granular down
>> to the lowest possible level, then this drives higher data requirements all
>> through the processing chain, including the rating engine. Traditional
>> systems tend to pass less granular (more highly aggregated) data into the
>> rating engine so that bill runs and invoices can be generated efficiently.
>> At cloud-scale, this can be problematic. Given some “big data” approaches,
>> though, this could be handled in a more granular and real-time fashion.
> 
> Has anyone looked at what statsd does? It has very similar
> requirements (simple to use, no hard a-priori definition of things to
> count, a few base types to track), and needs to be horizontally
> scalable.

Also Swift has plans to use statsd for instrumentation/monitoring, so
it's definitely worth a look to see if it could be used here as well.

http://folsomdesignsummit2012.sched.org/event/d9135eabdd775432c74c3f1d32a325d3
http://etherpad.openstack.org/FolsomSwiftStatsd

-- 
Thierry Carrez (ttx)
Release Manager, OpenStack