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#openstack-nova - 2019-02-01
13:21:15 mdbooth lyarwood: Sorry, I don't think we can spit-shine that turd.
13:25:36 mdbooth lyarwood: The design of the nfs volume driver handles both shared targets and multi-attach. I'm pretty sure we could mostly copy it.
13:25:54 mdbooth We also backport that, btw.
13:26:00 mdbooth backported
13:34:09 lyarwood mdbooth: back, reading
13:34:52 mdbooth lyarwood: TL;DR Your edge case has edge cases
13:35:18 mdbooth It just makes things edgier
13:37:42 lyarwood and now this is stuck in my head https://www.youtube.com/watch?v=H8dZwXnMrRU
13:38:43 mdbooth lyarwood: LOL
13:38:59 lyarwood mdbooth: right there's a bigger issue with this anyway that came to me during lunch, instance.host isn't updated until later in the post_live_migration flow.
13:39:28 lyarwood https://docs.openstack.org/nova/latest/reference/live-migration.html - post_live_migration_at_destination actually updates it
13:39:53 mdbooth lyarwood: And that will differ for cold migration, of course.
13:41:28 mdbooth Bill Bailey is awesome
13:43:12 mdbooth lyarwood: So you're suggesting we just overlay the edge cases with a massive effects library which makes them seem awesome?
13:43:45 mdbooth A truly generic solution.
13:45:04 lyarwood os-twiddly-dee
13:49:36 mdbooth lyarwood: Incidentally, I had to watch that twice just to convince myself he was playing Jingle Bells from the start.
13:50:52 openstackgerrit Eric Fried proposed openstack/os-resource-classes master: Add normalize_name utility https://review.openstack.org/634258
14:22:34 lyarwood mdbooth: okay, found the actual issue causing _should_disconnect_target to return True, during post_live_migration we are fetching the old connection_info from c-api again - https://github.com/openstack/nova/blob/5a4863aa152f58f6de426b3908a75c2cc1b2efca/nova/virt/libvirt/driver.py#L7970-L7976 and that doesn't contain the multiattach key, that's only added by n-cpu during the attach flows
14:22:36 lyarwood https://github.com/openstack/nova/blob/5a4863aa152f58f6de426b3908a75c2cc1b2efca/nova/virt/block_device.py#L538-L549
14:23:44 lyarwood I'll just grab the volume earlier in _should_disconnect_target and use it to tell if it's multiattach enabled or not.
14:23:56 mdbooth lyarwood: Ah, that one. Didn't I fix that already?
14:24:37 mdbooth lyarwood: Sec... lemme see if I can find those patches
14:24:40 lyarwood mdbooth: not that I can see in this flow
14:25:20 mdbooth lyarwood: Is it related to this patch: https://review.openstack.org/#/c/551302/ ?
14:27:15 lyarwood mdbooth: yeah
14:28:14 lyarwood mdbooth: https://review.openstack.org/#/c/551349/ was still WIP I think
14:28:36 mdbooth Right, but I think the two are somewhat independent
14:28:51 mdbooth Would the first one, appropriately rebased, fix your issue?
14:29:43 lyarwood mdbooth: yes AFAICT
14:29:54 mdbooth lyarwood: Would you like to take it?
14:31:29 lyarwood mdbooth: sure, I'll rebase and push this along.
14:32:05 mdbooth lyarwood: Thanks!
14:33:54 mriedem https://review.openstack.org/#/c/632720/
14:33:54 mriedem bauzas: can you hit this as stable core? v
14:34:07 bauzas mriedem: of course yeah
14:42:00 openstackgerrit Eric Fried proposed openstack/os-resource-classes master: Add normalize_name utility https://review.openstack.org/634258
14:43:08 rha Hello. Anybody here, who's willing to do a review on: https://review.openstack.org/#/c/420026/ ? It should be rather straightforward I hope,
14:50:14 dansmith mriedem: I hadn't saved my comments on that serial number patch, so I just did and see that a new rev was postd
14:50:44 dansmith mriedem: I -1d the new one because I don't think we really should or need to deprecate that thing, but I'm not going to die on that hill
14:52:05 sean-k-mooney dansmith: Zhenyu Zheng send an email this morning saying he would push a new version following the discusssion on the ml thread
14:52:24 dansmith sean-k-mooney: you mean the new rev I mention above/
14:52:48 sean-k-mooney dansmith: i havent looked but i assume so
14:55:46 sean-k-mooney this is the mail i was refering too http://lists.openstack.org/pipermail/openstack-discuss/2019-February/002285.html what would be your preference? keep the config option undeprecated
14:56:03 dansmith sean-k-mooney: that's what I just said, yes :)
14:56:40 sean-k-mooney well what i should of asked is that long term or just for stien
14:57:07 dansmith I don't think there's any reason to deprecate it at all
14:57:22 dansmith there's a potential use for it, it's not blocking other things, nor is it a large maintenance burden, etc
14:58:42 sean-k-mooney it is exposing host info to the guest in a non obficated way.
14:59:26 dansmith it is, which is a good reason to default it to unique, but it's not useful data.. meaning the only thing you could really use it for is to determine if two instances are on the same host
14:59:31 dansmith which you can already do
14:59:36 sean-k-mooney i dont really care i guess one way or another if there is a config but i do think it would be nice to have uniqe id be the default
14:59:43 dansmith agree
15:07:49 mriedem the point of the flavor extra spec and image property were for users that really needed the unique serial to be able to get that regardless of the underlying config, which most operators likely don't even know this exists. in a public cloud, the flavor/image are probably controlled by the operator anyway, so having said that, if you don't have the spec/image property, you could still control this with aggregates if needed, i.
15:07:50 mriedem efault unique everywhere, restrict via aggregate to hosts configured with host serial
15:07:52 mriedem if needed
15:09:02 mriedem and i think we've come full circle now because i think when this originally came up in a nova meeting as a specless blueprint, the idea was just a new config option choice
15:10:00 mriedem http://eavesdrop.openstack.org/meetings/nova/2018/nova.2018-10-18-14.00.log.html#l-199
15:30:06 mnaser dansmith: fyi the difference between the way hostId exposes things is that it hashes with a tenant_id so a tenant cant know its if on a box with another tenant
15:30:25 dansmith mnaser: yeah I know
15:30:33 mnaser the one exposed via the serial is not hashed, so technically i could keep retrying and spawn a vm on the same host knowingly
15:30:37 mnaser ok cool :)
15:30:49 dansmith yeah, but you also can't use that value anywhere in the api
15:31:00 dansmith I totes think it should be defaulted to unique
15:31:25 sean-k-mooney dansmith: im not sure about that but i dont want to specalate publicly
15:31:28 mnaser ++ i guess you just want to retain the ability to keep that old behaviour if a deployer wants to be
15:31:40 dansmith yes
15:31:46 dansmith because there's really no reason to just remove it
15:34:26 mriedem sean-k-mooney: couple small comments in https://review.openstack.org/#/c/626381/
15:35:45 sean-k-mooney mriedem: just on a call but ill respin shortly
15:43:44 mriedem stephenfin: alex_xu said he can take over https://blueprints.launchpad.net/nova/+spec/remove-force-flag-from-live-migrate-and-evacuate when he's back in a week so i'm just going to assign it to him
15:45:49 sean-k-mooney mriedem: i think he is currently flying to fosdem but ill let him know
15:47:17 openstackgerrit Elod Illes proposed openstack/nova stable/queens: Fix incompatible version handling in BuildRequest https://review.openstack.org/634439
15:48:39 mriedem zzzeek: thanks for https://bugs.launchpad.net/oslo.db/+bug/1814199 i can confirm with your patch to oslo.db that the SAWarning is gone from nova unit test runs on py35
15:48:40 openstack Launchpad bug 1814199 in oslo.db "soft_delete is wrong" [Undecided,New]
15:48:48 mriedem at least the one i recreated the with
15:49:05 mriedem isn't that oslo.db bug just a duplicate of https://bugs.launchpad.net/oslo.db/+bug/1814182 though? do we need both bugs?
15:49:06 openstack Launchpad bug 1814182 in oslo.db "SAWarning: Evaluating non-mapped column expression 'id' onto ORM instances; this is a deprecated use case. Please make use of the actual mapped columns in ORM-evaluated UPDATE / DELETE expressions." [Medium,Confirmed]
15:50:07 mriedem Oh I guess maybe you meant to use bug 1814182 as a workaround to pass in synchronize_session=False to soft_delete()?
15:50:08 openstack bug 1814182 in oslo.db "SAWarning: Evaluating non-mapped column expression 'id' onto ORM instances; this is a deprecated use case. Please make use of the actual mapped columns in ORM-evaluated UPDATE / DELETE expressions." [Medium,Confirmed] https://launchpad.net/bugs/1814182
16:02:43 openstackgerrit sean mooney proposed openstack/nova master: PCI: do not force remove allocated devices https://review.openstack.org/626381
16:15:24 openstackgerrit sean mooney proposed openstack/nova master: Libvirt: do not set mac when unplugging macvtap vf https://review.openstack.org/624842
16:15:25 openstackgerrit sean mooney proposed openstack/nova master: Allow per-port modification of vnic_type and profile https://review.openstack.org/607365
16:15:25 openstackgerrit sean mooney proposed openstack/nova master: Add free for claimed, allocated devices https://review.openstack.org/616120
16:15:26 openstackgerrit sean mooney proposed openstack/nova master: SR-IOV Live migration indirect port support https://review.openstack.org/620115
16:15:26 openstackgerrit sean mooney proposed openstack/nova master: Add get_instance_pci_request_from_vif https://review.openstack.org/619929
16:15:27 openstackgerrit sean mooney proposed openstack/nova master: libvirt: auto detach/attach sriov ports on migration https://review.openstack.org/629589
16:21:28 openstackgerrit sean mooney proposed openstack/nova master: libvirt: auto detach/attach sriov ports on migration https://review.openstack.org/629589
16:40:42 mriedem sean-k-mooney: i think you've got a pep8 error in that pci fix
16:41:23 openstackgerrit Matt Riedemann proposed openstack/nova master: Ignore SAWarnings for "Evaluating non-mapped column expression" https://review.openstack.org/634450
16:41:24 mriedem ^ should help with the subunit parser gate failures
16:46:39 openstackgerrit Matt Riedemann proposed openstack/nova master: Ignore sqla-migrate inspect.getargspec deprecation warnings https://review.openstack.org/634451
16:46:40 mriedem and this ^
16:58:04 openstackgerrit sean mooney proposed openstack/nova master: PCI: do not force remove allocated devices https://review.openstack.org/626381
16:58:32 sean-k-mooney mriedem: fixed. i added the comment after i ran pep8 locally
17:14:54 openstackgerrit Matt Riedemann proposed openstack/nova master: Share snapshot image membership with instance owner https://review.openstack.org/630769
18:00:39 openstackgerrit Hang Yang proposed openstack/nova stable/queens: Fix port dns_name reset https://review.openstack.org/633807
18:20:05 jroll mriedem | jroll: is https://blueprints.launchpad.net/nova/+spec/ironic-conductor-groups going to happen in stein or get deferred to train? <- I've been away all year but back monday, I should be able to knock it out in the next couple weeks
18:21:15 sean-k-mooney jroll: well it was approved
18:22:03 sean-k-mooney in theory the inial implematnion should already be available at this point but if one was ready for review shortly it might be possible

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