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

Andres Alvarez andresalvarez353 at gmail.com
Wed Apr 19 06:16:49 UTC 2017


Thanks for clearing that guys. Cheers!

On Tue, Apr 18, 2017 at 9:40 AM, Andres Alvarez <andresalvarez353 at gmail.com>
wrote:

> 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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