[openstack-dev] [telemetry] [ceilometer] Difference between publishers and dispatchers?

Andres Alvarez andresalvarez353 at gmail.com
Tue Apr 18 01:40:39 UTC 2017


Hi Julien

Thanks for your response. So does this mean that dispatchers will also be
deprecated (if not already deprecated) in favor of only using publishers?

On Mon, Apr 17, 2017 at 5:49 PM, Julien Danjou <julien at danjou.info> wrote:

> On Mon, Apr 17 2017, Andres Alvarez wrote:
>
> Hi Andres,
>
> > I am a bit confused on what is the difference between dispatchers and
> > publishers in Ceilometer. The documentation explains a bit about
> publishers
> > in the pipeline, but it does not mention much (if anything) about
> > dispatchers.
>
> Publishers are configured into the pipeline to indicate where to push
> samples data (e.g. to Gnocchi).
> One of the publisher is notifier:// which sends the samples to the (now
> deprecated) ceilometer-collector process.
>
> Ceilometer collector stores data into other system via a dispatcher
> mechanism (e.g. to Gnocchi). It's now deprecated as it's just, with
> current architecture, a unnecessary step: publishers can do the job
> directly.
>
> --
> Julien Danjou
> # Free Software hacker
> # https://julien.danjou.info
>
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