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Hi Don,



2014-02-18 21:28 GMT+01:00 Dugger, Donald D <donald.d.dugger at intel.com>:

>  Sylvain-
>
>
>
> As you can tell from the meeting today the scheduler sub-group is really
> not the gantt group meeting, I try to make sure that messages for things
> like the agenda and what not include both `gantt' and `scheduler' in the
> subject so it's clear we're talking about the same thing.
>
>
>

That's the main reason why I was unable to attend the previous scheduler
meetings...
Now that I attended this today meeting, that's quite clear to me. I
apologize for this misunderstanding, but as I can't dedicate all my time on
Gantt/Nova, I have to make sure the time I'm taking on it can be worth it.

Now that we agreed on a plan for next steps, I think it's important to put
the infos on Gantt blueprints, even if most of the changes are related to
Nova. The current etherpad is huge, and frightening people who would want
to contribute IMHO.



>  Note that our ultimate goal is to create a scheduler that is usable by
> other projects, not just nova, but that is a second task.  The first task
> is to create a separate scheduler that will be usable by nova at a
> minimum.  (World domination will follow later J
>
>
>

Agreed. I'm just thinking on the opportunity of providing a REST API on top
of the scheduler RPC API with a 1:1 matching, so that the Gantt project
would step up by itself. I don't think it's a hard stuff, provided I
already did that stuff for Climate (providing Pecan/WSME API). What do you
think about it ? Even if it's not top priority, that's a quickwin.

-Sylvain

 --
>
> Don Dugger
>
> "Censeo Toto nos in Kansa esse decisse." - D. Gale
>
> Ph: 303/443-3786
>
>
>
> *From:* Sylvain Bauza [mailto:sylvain.bauza at gmail.com]
> *Sent:* Monday, February 17, 2014 4:26 PM
> *To:* OpenStack Development Mailing List (not for usage questions)
> *Subject:* Re: [openstack-dev] [Nova] Meetup Summary
>
>
>
> Hi Russell and Don,
>
>
>
> 2014-02-17 23:41 GMT+01:00 Russell Bryant <rbryant at redhat.com>:
>
> Greetings,
>
>
> 2) Gantt  - We discussed the progress of the Gantt effort.  After
> discussing the problems encountered so far and the other scheduler work
> going on, the consensus was that we really need to focus on decoupling
> the scheduler from the rest of Nova while it's still in the Nova tree.
>
> Don was still interested in working on the existing gantt tree to learn
> what he can about the coupling of the scheduler to the rest of Nova.
> Nobody had a problem with that, but it doesn't sound like we'll be ready
> to regenerate the gantt tree to be the "real" gantt tree soon.  We
> probably need another cycle of development before it will be ready.
>
> As a follow-up to this, I wonder if we should rename the current gantt
> repository from openstack/gantt to stackforge/gantt to avoid any
> possible confusion.  We should make it clear that we don't expect the
> current repo to be used yet.
>
>
>
> There is currently no precise meeting timeslot for Gantt but the one with
> Nova scheduler subteam. Would it be possible to have a status on the
> current path for Gantt so that people interested in joining the effort
> would be able to get in ?
>
>
>
> There is currently a discussion on how Gantt and Nova should interact, in
> particular regarding HostState and how Nova Computes could update their
> status so as Gantt would be able to filter on them. There are also other
> discussions about testing, API, etc. so I'm just wondering how to help and
> where.
>
>
>
> On a side note, if Gantt is becoming a Stackforge project planning to have
> Nova scheduling first, could we also assume that we could also implement
> this service for being used by other projects (such as Climate) in parallel
> with Nova ?
>
> The current utilization-aware-scheduling blueprint is nearly done so that
> it can be used for other queries than just Nova scheduling, but
> unfortunately as the scheduler is still part of Nova and without a REST
> API, it can't be leveraged on third-party projects.
>
>
>
>
>
> Thanks,
>
> -Sylvain
>
>
>
> [1] :
> https://blueprints.launchpad.net/nova/+spec/utilization-aware-scheduling
>
>
>
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