09:01:58 <masahito> #startmeeting blazar
09:01:59 <openstack> Meeting started Tue May 15 09:01:58 2018 UTC and is due to finish in 60 minutes.  The chair is masahito. Information about MeetBot at http://wiki.debian.org/MeetBot.
09:02:01 <openstack> Useful Commands: #action #agreed #help #info #idea #link #topic #startvote.
09:02:03 <openstack> The meeting name has been set to 'blazar'
09:02:12 <masahito> hi blazar folks
09:02:19 <masahito> #topic RollCall
09:02:35 <priteau> o/
09:03:07 <masahito> priteau: hi
09:03:17 <masahito> Today's agenda is
09:03:29 <masahito> 1. the Forum session
09:03:34 <masahito> 2. Next weekly meeting
09:03:37 <masahito> 3. AOB
09:03:41 <masahito> anything else?
09:04:54 <masahito> #topic the Forum session
09:05:34 <masahito> The forum session I proposed is accepted and scheduled on Monday in the Vancouver summit.
09:05:37 <masahito> https://wiki.openstack.org/wiki/Forum/Vancouver2018
09:05:49 <hiro-kobayashi> hi
09:05:51 <priteau> Great news!
09:06:04 <masahito> I created etherpad for the session. Feel free to write down your idea.
09:06:12 <masahito> https://etherpad.openstack.org/p/YVR18-forum-reservation-requirements
09:06:14 <masahito> hiro-kobayashi: hi
09:06:34 <masahito> The page now has only the copy of my proposal.
09:06:54 <priteau> The parallel tracks don't have conflicting topics as well, that's good.
09:07:08 <masahito> right.
09:08:13 <masahito> Additionally, I found Preemptive instances has one session. I'll join the session.
09:08:16 <masahito> [1350-1430] Preemptible instances - the way forward - https://etherpad.openstack.org/p/YVR18-pre-emptible-instances
09:08:37 <priteau> It could be interesting to join the placement sessions too
09:08:51 <priteau> [1510-1550] Building the path to extracting Placement from Nova https://etherpad.openstack.org/p/YVR-placement-extraction
09:08:58 <priteau> [1620-1700] Planning to use Placement in Cinder https://etherpad.openstack.org/p/YVR-cinder-placement
09:09:13 <priteau> (on Monday)
09:09:30 <hiro-kobayashi> Thanks for sharing session info
09:09:41 <priteau> The preemptible instances session is on Tuesday
09:10:04 <hiro-kobayashi> it's better at least one of us join above sessions
09:11:18 <masahito> I hope the cinder one helps us to make an idea using Placement in Blazar.
09:11:51 <priteau> And also how to integrate non-compute services with Blazar
09:12:09 <masahito> hiro-kobayashi and I will be in the summit. We could join the sessions.
09:12:12 <masahito> priteau: right.
09:12:16 <priteau> If Cinder moves to using placement, maybe there will be a generic way we can support any service using placement
09:14:01 <masahito> yes. Anyway, lots of forum sessions are in the summit.
09:16:00 <masahito> another comment?
09:17:45 <priteau> That's all from me
09:17:58 <hiro-kobayashi> me too
09:18:14 <masahito> got it. let's move on to next
09:18:21 <masahito> #topic Next weekly meeting
09:18:50 <masahito> Next week is the summit week as you know.
09:19:04 <masahito> If possible, I'd like to skip next meeting.
09:20:12 <hiro-kobayashi> I'm at the summit, too. I'm okay to skip it.
09:20:44 <priteau> That works for me too as I wouldn't be able to join anyway.
09:21:01 <priteau> I will be in Chicago next Tuesday.
09:21:30 <masahito> got it. let's skip next meeting.
09:21:49 <masahito> priteau: Safe trip to Chicago.
09:22:17 <masahito> #topic AOB
09:22:29 <masahito> less topics today.
09:22:40 <masahito> Does someone have something to share/discuss?
09:23:31 <hiro-kobayashi> I reviewed masahito's multi-freepools patch today: https://review.openstack.org/#/c/564138/
09:23:59 <hiro-kobayashi> I posted one comment but now I have another question.
09:24:08 <masahito> thanks
09:24:47 <hiro-kobayashi> it uses 'resource_properties' for instance reservation but 'hypervisor_properties' for host reservation
09:25:32 <hiro-kobayashi> Which is better, hypervisor_properties or resource_properties?
09:26:12 <priteau> hypervisor_properties are dynamically imported from Nova when the operator calls add-host
09:26:29 <priteau> resource_properties query extra_capabilities
09:27:10 <masahito> Actually, either hypervisor_properties or resource_properties works for the host reservation.
09:27:14 <priteau> Shouldn't it be hypervisor_properties everywhere?
09:28:13 <masahito> but for the meaning of az as priteau mentioned, I choose hypervisor_properties.
09:28:45 <masahito> The az info is imported from Nova. The hypervisor_properties looks good to me.
09:28:55 <hiro-kobayashi> Got it. Current implementation calls Nova hypervisors API and get az when the add-host is called. So, it is a hypervisor properties. make sense.
09:30:21 <priteau> We should check whether that
09:30:27 <priteau> information is kept up to date
09:30:44 <priteau> i.e. if you add-host to Blazar, then change the AZ in nova, is it reflected in Blazar?
09:30:46 <priteau> I am not sure it is
09:31:31 <hiro-kobayashi> We should investigate it.
09:32:16 <masahito> Current implementation doesn't apply the change.
09:33:01 <hiro-kobayashi> A polling of notification listener is needed for such capability, right?
09:33:07 <hiro-kobayashi> s/of/or
09:33:21 <masahito> IIRC, It's described in the spec.
09:33:23 <priteau> Or a periodic query of Nova
09:33:58 <masahito> Or re-add the host to Blazar.
09:34:37 <priteau> The operator will be prone to forget
09:34:45 <priteau> I think Blazar should automate it
09:35:58 <hiro-kobayashi> From operators point of view, I think changing az is rare operation. So I think priority of automation is not so high.
09:36:41 <hiro-kobayashi> Anyway, changing of az can cause reallocations :-(
09:37:05 <masahito> IIRC, the az info is managed by nova.conf. At least, the host is need to be reboot.
09:38:30 <masahito> I'll update the patch set with some change.
09:40:03 <hiro-kobayashi> masahit: for handling change of az?
09:40:46 <masahito> hiro-kobayashi: refrecting your comment and add comments or releasenote.
09:40:57 <hiro-kobayashi> masahito: OK. thanks!
09:41:16 <masahito> looks nothing more to talk.
09:41:29 <masahito> let's finish the meeting early.
09:41:53 <masahito> thanks all. bye!
09:42:04 <hiro-kobayashi> thanks! bye
09:42:18 <masahito> Safe trip to Vancouver or Chicago!
09:42:24 <masahito> #endmeeting