[openstack-dev] [ceilometer] Retiring ceilometerclient

Monty Taylor mordred at inaugust.com
Wed Jan 10 23:40:28 UTC 2018

On 01/10/2018 04:10 PM, Jon Schlueter wrote:
> On Thu, Nov 23, 2017 at 4:12 PM, gordon chung <gord at live.ca> wrote:
>> On 2017-11-22 04:18 AM, Julien Danjou wrote:
>>> Hi,
>>> Now that the Ceilometer API is gone, we really don't need
>>> ceilometerclient anymore. I've proposed a set of patches to retire it:
>>>     https://review.openstack.org/#/c/522183/
> So my question here is are we missing a process check for retiring a
> project that is still in
> the requirements of several other OpenStack projects?
> I went poking around and found that rally [4], heat [1], aodh [3] and
> mistral [2] still had references to
> ceilometerclient in the RPM packaging in RDO Queens, and on digging a
> bit more they
> were still in the requirements for at least those 4 projects.
> I would think that a discussion around retiring a project should also
> include at least enumerating
> which projects are currently consuming it [5].  That way a little bit
> of pressure on those consumers
> can be exerted to evaluate their usage of an about to be retired
> project.  It shouldn't stop the
> discussions around retiring a project just a data point for decision making.

It's worth pointing out that openstacksdk has ceilometer REST API 
support in it, although it is special-cased since ceilometer was retired 
before we even made the service-types-authority:


We can either keep it there indefinitely (there is no cost to keeping 
it, other than that one "self._load('metric')" line) - or we could take 
this opportunity to purge it from sdk as well.

BUT - if we're going to remove it from SDK I'd rather we do it in the 
very-near-future because we're getting closer to a 1.0 for SDK and once 
that happens if ceilometer is still there ceilometer support will remain 
until the end of recorded history.

We could keep it and migrate the heat/mistral/rally/aodh 
ceilometerclient uses to be SDK uses (although heaven knows how we test 
that without a ceilometer in devstack)

I honestly do not have a strong opinion in either direction and welcome 
input on what people would like to see done.


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