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#openstack-nova - 2018-06-01
08:47:58 openstackgerrit jichenjc proposed openstack/nova master: z/VM Driver: add snapshot function https://review.openstack.org/534240
08:47:59 openstackgerrit jichenjc proposed openstack/nova master: z/VM Driver: add power actions https://review.openstack.org/543340
08:48:00 openstackgerrit jichenjc proposed openstack/nova master: z/VM Driver: add get console output https://review.openstack.org/543344
09:19:25 openstackgerrit jichenjc proposed openstack/nova master: not reraise DiskNotFound if instance is resized https://review.openstack.org/571410
09:26:08 sahid jaypipes: hello, if I can ask you, I think we made with matt some good progress with the trsuted-vf feature
09:26:11 sahid https://review.openstack.org/#/q/topic:bp/sriov-trusted-vfs+(status:open+OR+status:merged)
09:26:23 sahid can you have a look when you have a moment
09:42:29 openstackgerrit Stephen Finucane proposed openstack/nova-specs master: Add 'numa-aware-vswitches' spec https://review.openstack.org/541290
09:58:28 sahid jangutter: if you can address the last comment https://review.openstack.org/#/c/570959/ I will +2 your patch so when sean is comming back that will be approved
10:02:29 jangutter sahid: thanks! I'm happy to whack that. But, check the nova patches out for another wrinkle, it seems this route might only be useful for some very esoteric cases and not be needed after all.
10:10:39 sahid jangutter: ok will look at that
11:25:22 openstackgerrit Chen proposed openstack/nova master: WIP https://review.openstack.org/571472
12:12:54 openstackgerrit Merged openstack/nova master: libvirt: add vf_trusted field for network metadata https://review.openstack.org/566343
12:16:06 openstackgerrit Merged openstack/nova master: metadata: add vf_trusted field to device metadata https://review.openstack.org/566344
12:44:56 mriedem the trusted vf series just has one remaining patch https://review.openstack.org/#/c/458820/
12:45:05 mriedem and it's pretty simple
13:00:01 mriedem stephenfin: artom: i've got some questions in the numa-aware vswitch, new ones about live migration support https://review.openstack.org/#/c/541290/
13:03:17 artom mriedem, dammit, I was hoping I'd get to avoid that massive thing ;)
13:03:30 artom Nah, I'll check it out, see if I can be useful
13:04:00 mriedem stephenfin: i think for any move operation, we'll have to modify the request spec to include the current numa-aware interface information from the instance info cache so the NUMATopologyFilter can pick a proper destination host
13:04:46 stephenfin mriedem: Yeah, I was planning to just build one of those InstanceNUMANetworks objects from instance info cache
13:04:47 mriedem which kind of makes me wonder, if you can't attach numa-aware interfaces to a running instance, then the instance info_cache should match the original request spec's requested_networks, and then i wonder why we wouldn't persist it for move operations
13:05:05 mriedem dansmith: ^
13:05:17 stephenfin mriedem: You can attach them - you just won't get NUMA affinity
13:05:20 mriedem are you guys all on happy time red hat meeting fun hour right now?
13:05:54 mriedem stephenfin: ok so if i want to attach new numa-aware instances with affinity, i'd have to do that and then resize my instance to get it to move
13:06:01 stephenfin I mean, I guess we could enforce that if we wanted to but the spec is already too big for its own good. I want to land _something_ :)
13:06:11 stephenfin mriedem: At present, yes
13:06:40 stephenfin mriedem: https://review.openstack.org/#/c/541290/15/specs/rocky/approved/numa-aware-vswitches.rst@405
13:06:49 stephenfin giblet: Thanks for the reminder
13:07:04 mriedem finucannot: yeah i know it says that
13:07:55 mriedem finucannot: i know you want to land something,
13:08:15 mriedem but i also don't want to land a gaping hole that we don't fix for 4 years like the existing numa stuff
13:09:01 mriedem so what does the "claim" actually do?
13:09:05 mriedem since we won't have a claim during live migration
13:09:44 finucannot mriedem: The claim builds the guest's NUMA topology
13:09:56 finucannot For that to happen, I need to have information about the networks attached to the guest
13:10:14 finucannot Far as I can see, for a new instance the info cache is not yet populated
13:11:04 finucannot finucannot: Agreed on not having a gaping hole. The approach artom takes for solving live migration for NUMA should get us this almost for free, I'm guessing
13:11:14 finucannot *mriedem:
13:11:35 artom Passing IntanceNUMATopology as part of live_migrate_data?
13:11:55 mriedem finucannot: so this spec depends on artom's bp for live migration then?
13:12:51 finucannot mriedem: Kind of but not really
13:13:04 mriedem so you guys might want to talk about this....
13:13:10 finucannot It needs that spec for live migration to work, but so does everything that involves NUMA and CPU pinning
13:13:11 mriedem i'm not familiar enough with artom's spec yet
13:13:18 mriedem right, ok,
13:13:26 mriedem so i think we call that out as a dependency for live migration to work, that's fine,
13:13:31 finucannot Seeing as they're currently very much tied, much to jaypipes chagrin
13:13:33 mriedem the rest could go ahead with that caveat
13:13:52 finucannot ack
13:15:13 giblet finucannot, mriedem: very similar thing will happen with the bandwidth. We need to regenerate the bandwidth request part of the request spec for all the VM move operations
13:16:24 mriedem giblet: yup, i think that was called out in your spec
13:16:32 mriedem finucannot: ok so i left some targeted things to update in your spec, then i think i'm +2
13:16:48 mriedem i just want to make sure it's written down because it's a lot of churn and w/o the list of work items we're likely to forget something
13:16:58 finucannot Yup, that's fair
13:17:04 giblet mriedem: yes, it was
13:17:26 mriedem giblet: hopefully the internal churn doesn't negatively impact you
13:17:37 giblet mriedem: and now have some TODOs in the currently proposed patches where to do those. I.e. https://review.openstack.org/#/c/567268/9/nova/compute/api.py@4234
13:18:08 giblet mriedem: there will be nice rebases I'm sure. But that is life :)
13:18:12 mriedem giblet: request spec tinkering should happen in conductor
13:18:35 giblet mriedem: OK, then 'badly placed TODOs' :) I can push those up in the call chain
13:18:46 leakypipes finucannot: well remembered.
13:23:00 giblet mriedem: thanks for the comments in that bwm patch about my TODOs. Thanks for the pointer like 'reset_request_destinations'
13:23:34 mriedem giblet: i might have gotten that method name wrong
13:23:57 giblet mriedem: I can apply AI to find the right one :)
13:23:59 mriedem reset_forced_destinations
13:24:05 giblet mriedem: ty
13:24:06 mriedem ha
13:24:11 mriedem is that your new job now? AI master?
13:24:28 mriedem train the machine to write your bw-aware series
13:24:37 giblet mriedem: it is more like a wanabe hobby
13:24:48 mriedem well at least you have a hobby
13:24:50 giblet mriedem: but it would be so easy just to push it to an AI
13:25:25 bauzas warning, I'm changing my Friday nick
13:25:58 PapaOurs leakypipes: thanks for having reviewed https://review.openstack.org/#/c/557065/
13:26:50 PapaOurs leakypipes: as far as I understand, your strong -1 is related to the fact it's about traits and nvidia
13:27:06 PapaOurs leakypipes: but look at https://github.com/intel/gvt-linux/wiki/GVTg_Setup_Guide#51-check-mdev-module-kvmgt-only
13:27:37 PapaOurs leakypipes: mdev's supported_types is a kernel's VFIO feature
13:27:52 sususuryashines hansmoleman: you finally got your friday nick!? :D
13:27:53 PapaOurs leakypipes: so even if only nvidia uses it, why the spec should be about nvidia ?
13:31:59 openstackgerrit Stephen Finucane proposed openstack/nova-specs master: Add 'numa-aware-vswitches' spec https://review.openstack.org/541290
13:33:53 fried_rice What's ironic's nova CI called?
13:34:48 leakypipes PapaOurs: that mdev_supported_types is nothing more than a reference to NVIDIA's product names.
13:34:53 sususuryashines dansmith, hansmoleman: would like your opinion on https://review.openstack.org/#/c/560042/ whenever you have the time.
13:35:18 dansmith this sounds like a job for...
13:35:46 jroll fried_rice: something-ironic-something :P
13:36:02 jroll ironic-tempest-dsvm-ipa-wholedisk-bios-agent_ipmitool-tinyipa
13:36:08 fried_rice oh, there it is.
13:36:11 fried_rice thanks jroll
13:36:15 jroll np
13:36:24 MurderTheLeafBlo damn restrictions on nick length.
13:36:31 jroll heh
13:37:12 fried_rice leakypipes: DieLeafBlowerDie ought to fit
13:37:53 leakypipes fried_rice: oooh, nice.
13:40:47 hansmoleman sususuryashines: only temporary
13:40:56 hansmoleman i'm actually allergic to fun
13:40:59 openstackgerrit Tsuyoshi Nagata proposed openstack/nova master: nova improvement of maximum attach volumes more than 26 vols https://review.openstack.org/567472
13:41:42 sususuryashines hansmoleman: :P
13:42:54 hansmoleman finucannot: thanks, +2

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