[openstack-dev] Scheduler meeting and Icehouse Summit

Alex Glikson GLIKSON at il.ibm.com
Mon Oct 14 17:56:49 UTC 2013


IMO, the three themes make sense, but I would suggest waiting until the 
submission deadline and discuss at the following IRC meeting on the 22nd. 
Maybe there will be more relevant proposals to consider.

Regards,
Alex

P.S. I plan to submit a proposal regarding scheduling policies, and maybe 
one more related to theme #1 below



From:   "Day, Phil" <philip.day at hp.com>
To:     OpenStack Development Mailing List 
<openstack-dev at lists.openstack.org>, 
Date:   14/10/2013 06:50 PM
Subject:        Re: [openstack-dev] Scheduler meeting and Icehouse Summit



Hi Folks,

In the weekly scheduler meeting we've been trying to pull together a 
consolidated list of Summit sessions so that we can find logical groupings 
and make a more structured set of sessions for the limited time available 
at the summit.

https://etherpad.openstack.org/p/IceHouse-Nova-Scheduler-Sessions

With the deadline for sessions being this Thursday 17th, tomorrows IRC 
meeting is the last chance to decide which sessions we want to combine / 
prioritize.    Russell has indicated that a starting assumption of three 
scheduler sessions is reasonable, with any extras depending on what else 
is submitted.

I've matched the list on the Either pad to submitted sessions below, and 
added links to any other proposed sessions that look like they are 
related.


1) Instance Group Model and API
                 Session Proposal:  
http://summit.openstack.org/cfp/details/190
 
2) Smart Resource Placement:
                 Session Proposal:  
http://summit.openstack.org/cfp/details/33
                 Possibly related sessions:              Resource 
optimization service for nova  (
http://summit.openstack.org/cfp/details/201)

3) Heat and Scheduling and Software, Oh My!:
                 Session Proposal: 
http://summit.openstack.org/cfp/details/113

4) Generic Scheduler Metrics and Celiometer:
                 Session Proposal: 
http://summit.openstack.org/cfp/details/218
                 Possibly related sessions:  Making Ceilometer and Nova 
play nice  http://summit.openstack.org/cfp/details/73

5) Image Properties and Host Capabilities
                 Session Proposal:  NONE

6) Scheduler Performance:
                 Session Proposal:  NONE
                 Possibly related Sessions: Rethinking Scheduler Design  
http://summit.openstack.org/cfp/details/34

7) Scheduling Across Services:
                 Session Proposal: NONE

8) Private Clouds:
                 Session Proposal:   
http://summit.openstack.org/cfp/details/228

9) Multiple Scheduler Policies:
                 Session Proposal: NONE


The proposal from last weeks meeting was to use the three slots for:
                 - Instance Group Model and API   (1)
                 - Smart Resource Placement (2)
                 - Performance (6)

However, at the moment there doesn't seem to be a session proposed to 
cover the performance work ?

It also seems to me that the Group Model and Smart Placement are pretty 
closely linked along with (3) (which says it wants to combine 1 & 2 into 
the same topic) , so if we only have three slots available then these look 
like logical candidates for consolidating into a single session.    That 
would free up a session to cover the generic metrics (4) and Ceilometer - 
where a lot of work in Havana stalled because we couldn't get a consensus 
on the way forward.  The third slot would be kept for performance - which 
based on the lively debate in the scheduler meetings I'm assuming will 
still be submitted as a session.    Private Clouds isn't really a 
scheduler topic, so I suggest it takes its chances as a general session. 
Hence my revised proposal for the three slots is:

  i) Group Scheduling / Smart Placement / Heat and Scheduling  (1), (2), 
(3), & (7)
                 - How do you schedule something more complex that a 
single VM ?
 
ii) Generalized scheduling metrics / celiometer integration (4)
                 - How do we extend the set of resources a scheduler can 
use to make its decisions ?
                 - How do we make this work with  / compatible with 
Celiometer ?

iii) Scheduler Performance (6)
 
In that way we will at least give airtime to all of the topics.     If a 
4th scheduler slot becomes available then we could break up the first 
session into two parts.

Thoughts welcome here or in tomorrows IRC meeting.

Cheers,
Phil 

 









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