On Apr 17, 2025 16:49, Sean Mooney <smooney@redhat.com> wrote:

>

>

> On 17/04/2025 13:17, Dmitriy Rabotyagov wrote:

> >> well gnocchi is also not a native OpenStack telemetry datastore, it left

> >> our community to pursue its own goals and is now a third party datastore

> >> just like Grafana or Prometheus.

> > Yeah, well, true. Is still somehow treated as the "default" thing with

> > Telemetry, likely due to existing integration with Keystone and

> > multi-tenancy support. And beyond it - all other options become

> > opinionated too fast - ie, some do OpenTelemetry, some do Zabbix,

> > VictoriaMetrics, etc. As pretty much from what I got as well, is that

> > still relies on Ceilometer metrics?

> > And then Prometheus is obviously not the best storage for them, as it

> > requires to have pushgatgeway, and afaik prometheus maintainers are

> > strictly against "push" concept to it and treat it as conceptually

> > wrong (on contrary to OpenTelemetry).

>

> i dont know the detail but i know there is work planned for native

> supprot of

> Prometheus scrpe endpoint in ceilometer

That is what the telemetry folks discussed during the last online PTG yes. If I understand correctly, the major issue is that prometheus does not support multi-tenancy. Telemetry team hope to add the feature by writing a proxy in front of it.

This would be nice, as Prometheus performs a way better than Gnocchi (it can eat 100 times more metrics per seconds).

Cheers,

Thomas Goirand (zigo)