[openstack-dev] [ceilometer] alternative publication conduits
Doug Hellmann
doug.hellmann at dreamhost.com
Mon Oct 29 18:02:31 UTC 2012
On Mon, Oct 29, 2012 at 1:22 PM, Julien Danjou <julien at danjou.info> wrote:
> On Mon, Oct 29 2012, Doug Hellmann wrote:
>
> >> So the idea is to mitigate this by sharing polling cycles where
> possible.
> >>
> >> Say the metering publisher needs to sample every 10 minutes, whereas a
> >> metrics publisher needs a more fine-grain, say every 2 minutes. In that
> >> case, the yield from every fifth polling cycle will be shared and
> published
> >> by both.
> >>
> >
> > Sure, that makes sense. What do we do if the user configures a pollster
> to
> > run every 10 seconds?
>
> The configuration semantic has to change in this regard. Users shouldn't
> configure pollster interval time, but publishers frequencies.
>
That doesn't really solve the problem, though, because they can still say
they want the data published every 10 seconds and then we have to compute
it that often.
Doug
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