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Hi Emilien,


We had this project of our own for a couple years and it was not meant to replace Ceilometer at all. For our billing use case, yes it did replace Ceilometer because scaling issues. We just wanted to propose it to the community as a matter of sharing knowledge.


This system just collects events that we/you care about and store them as a stream so you could reuse them later (in our case billing). And by the way Almanach doesn't do billing at all. You could even plug it to Cloud Kitty as a data source if you want.

So currently I'm not sure there is a project that does the same thing in Telemetry unless I'm mistaken. Yes there was Ceilometer, but for reason of api performance issue when hitting a huge DB with a lot of historic data. It was not scalling at all. Right now, not sure where Ceilometer is going in terms of dev and there is Aodh, but from what I read, it's for alerting purposes.


So now you know the "Why we are here now"...


Max



________________________________
From: Emilien Macchi <emilien at redhat.com>
Sent: November 2, 2016 6:02:50 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [Ceilometer]: Instance creation and deletion metrics in ceilometer !

On Wed, Nov 2, 2016 at 2:33 PM, Maxime Belanger <mbelanger at internap.com> wrote:
> Hi Raghunath,
>
>
> We are usign Almanach : https://github.com/openstack/almanach. I think your
[https://avatars0.githubusercontent.com/u/324574?v=3&s=400]<https://github.com/openstack/almanach>

openstack/almanach<https://github.com/openstack/almanach>
github.com
almanach - Record the utilization of OpenStack resources for each tenant



> use case pretty much fits what this project does.
> We implemented this as a replacement of Ceilometer to gather usage on
> instances and volumes. We query it to do our billing calculation.

I am failing to understand why we create projects to replace official
projects that would have the same mission statement or common
technical goals.  We saw it with Monasca and AFIK it didn't work very
well.
Have you engaged collaboration with Telemetry team to work together as
a community and propose your use-case to the roadmap if some feature
was missing?

I'm very interested to know from "Almanach" developers why we're here
now.  I personally like to think OpenStack contributors work as a
community and meet common goals by communicating on the appropriate
channels.
Please correct me if I'm wrong in the case this project is totally
doing something else, my knowledge in Telemetry is limited from my
user perspective.

> It is of course a less complete solution than CloudKitty + Gnocchi but
> suites our needs for now.
>
> Maxime
>
> ________________________________
> From: Raghunath D <raghunath.d at tcs.com>
> Sent: October 25, 2016 5:32:13 AM
> To: openstack-dev at lists.openstack.org
> Subject: Re: [openstack-dev] [Ceilometer]: Instance creation and deletion
> metrics in ceilometer !
>
> Hi ,
>
> Can some one please suggest how to instance notifications in ceilometer.
>
> With Best Regards
> Raghunath Dudyala
> Tata Consultancy Services Limited
> Mailto: raghunath.d at tcs.com
> Website: http://www.tcs.com
TCS: IT Services, Consulting and Business Solutions<http://www.tcs.com/>
www.tcs.com
Tata Consultancy Services’ IT services, consulting and business solutions deliver real results to global businesses to help them experience certainty.



> ____________________________________________
> Experience certainty. IT Services
> Business Solutions
> Consulting
> ____________________________________________
>
>
> -----Raghunath D/HYD/TCS wrote: -----
> To: openstack-dev at lists.openstack.org
> From: Raghunath D/HYD/TCS
> Date: 10/18/2016 08:01PM
> Subject: [openstack-dev] [Ceilometer]: Instance creation and deletion
> metrics in ceilometer !
>
> Hi ,
>
> How can instance created and deleted information/sample can be retrieved
> from ceilometer.
> What entries should be there in pipeline.yaml  to get instance deleted
> information.
>
> I tried to have meters- "instance" in pipeline.yam but it always gives
> active instance details,
> and no details of deleted instances.
>
> With Best Regards
> Raghunath Dudyala
> Tata Consultancy Services Limited
> Mailto: raghunath.d at tcs.com
> Website: http://www.tcs.com
TCS: IT Services, Consulting and Business Solutions<http://www.tcs.com/>
www.tcs.com
Tata Consultancy Services’ IT services, consulting and business solutions deliver real results to global businesses to help them experience certainty.



> ____________________________________________
> Experience certainty. IT Services
> Business Solutions
> Consulting
> ____________________________________________
>
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--
Emilien Macchi

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