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#openstack-nova - 2018-07-20
14:23:05 melwitt smcginnis: I had thought osc-placement would go along with client library releases since it's a plugin for a client, does it actually count as a non-client library?
14:23:33 smcginnis melwitt: Ah - right now it is flagged as a library.
14:23:57 melwitt oh :(
14:24:56 mriedem gmann: johnthetubaguy: am i remembering correctly that there was discussion about deprecating all of these dumb legacy server extension policy rules for things like whether or not we should 'config_drive' in the server response? those are all required in the response in our docs and tempest schema validation testing, so we should deprecate those policy rules.
14:24:57 smcginnis melwitt: No worries. When you do the next release for it you can switch over the "type" value to be "client-library" instead of "library".
14:25:27 smcginnis melwitt: Just wanted to make sure we weren't missing something since I saw it had a good handful of commits that have not been released.
14:29:37 melwitt smcginnis: yeah, thank you for pinging me about it. if I'd known it was "non-client library" I'd have proposed a release for it yesterday, for sure
14:32:19 openstackgerrit Lei Zhang proposed openstack/nova master: Add method to get cpu traits https://review.openstack.org/560317
14:33:47 smcginnis melwitt: Makes sense that it should be a client lib if it's an osc plugin. Just miscategorized I'd say.
14:40:21 melwitt smcginnis: coolness. I'll make sure to update that type value next release (next week)
15:01:24 mriedem finucannot: +2s on the next 2 in the series for numa stuff with comments that can be addressed in the follow up patch
15:01:28 mriedem especially the functional test one
15:05:03 finucannot mriedem: Cool, I'll stick the fixes in with https://review.openstack.org/#/c/582651/
15:05:13 finucannot Thanks for tackling those too. Much obliged
15:10:19 openstackgerrit Eric Fried proposed openstack/nova master: Check provider generation and retry on conflict https://review.openstack.org/556669
15:29:27 superdan finucannot: any chance you could clean up those unrelated bits in the functional test before you go for the week?
15:29:36 superdan I really hate to merge something with _that_ much noise
15:29:47 finucannot superdan: Fair point. Yeah, lemme tackle that now
15:29:51 superdan okay thanks
15:36:23 mriedem finucannot: comments in https://review.openstack.org/#/c/564452/23
15:36:30 mriedem you're missing all of the move operation stuff
15:36:40 mriedem which is probably a patch that needs to come *before* the API enables this for new servers
15:42:21 mriedem the move stuff probably requires 2 changes
15:42:35 mriedem 1. model network phsynes and tunneled in nova.network.model.Network which goes into the info cache
15:42:55 mriedem 2. the actual stuff in conductor that populates RequestSpec.network_metadata from the instance info cache prior to calling the scheduler to find a target host
15:56:00 openstackgerrit Stephen Finucane proposed openstack/nova master: Add functional tests for numa-aware-vswitches https://review.openstack.org/583288
15:56:01 openstackgerrit Stephen Finucane proposed openstack/nova master: scheduler: Start utilizing RequestSpec.network_metadata https://review.openstack.org/564452
15:56:02 openstackgerrit Stephen Finucane proposed openstack/nova master: Assorted cleanups from numa-aware-vswitches series https://review.openstack.org/582651
16:00:15 openstackgerrit Lee Yarwood proposed openstack/nova master: libvirt: Remove reference to transient domain when detaching devices https://review.openstack.org/584433
16:21:49 openstackgerrit Corey Bryant proposed openstack/nova master: In Python3.7 async is a keyword [1] https://review.openstack.org/584365
16:25:56 openstackgerrit Stephen Finucane proposed openstack/nova master: scheduler: Start utilizing RequestSpec.network_metadata https://review.openstack.org/564452
16:25:57 openstackgerrit Stephen Finucane proposed openstack/nova master: Assorted cleanups from numa-aware-vswitches series https://review.openstack.org/582651
16:33:42 openstackgerrit Pierre Blanc proposed openstack/nova master: Docs: Add guide to migrate instance with snapshot https://review.openstack.org/584442
17:11:51 tomtom001 hello, does anyone know if the scheduler_default_filters=AllHostsFilter does anything? Are there any problems using it?
18:27:07 mriedem powerkvm ci is happy on this now https://review.openstack.org/#/c/560317/
18:27:27 mriedem tomtom001: the AllHostsFilter is a noop
18:27:30 mriedem it accepts all hosts
18:28:25 mriedem superdan: on your bfv disk thing, i got the move / migrate patch up on top of that
18:28:37 mriedem fried_rolls also helped flush out some latent bugs in our disk usage reporting in the RT
18:29:10 superdan mriedem: oh awesome thanks, hadn't seen
18:29:16 superdan mriedem: since you're here.. on the down host thing...
18:29:35 superdan I was thinking -- can't we get away with the online migration without needing a marker record?
18:30:10 superdan we can query for max_limit records, where queued_for_delete is NULL and group_by or filter by cell to make the instance lookups more efficient
18:30:42 superdan we needed the marker for the initial roll-out of those records, because we didn't know where to pick up because we were creating them,
18:31:03 superdan but since we're just healing those that have no value set, we can use the NULL-ness to whittle that down I think
18:31:07 mriedem the migration is just copying how the reqspec migration was done
18:31:08 mriedem which uses a marker
18:31:28 superdan the creating of the reqspec?
18:31:30 mriedem yeah
18:31:33 superdan yeah,
18:31:40 mriedem i'm not sure that queued_for_delete will be NULL will it?
18:31:49 mriedem maybe it will, i forget how the defaults work in the new column
18:31:59 superdan this is different since we've already got all the records and we're just patching up
18:32:01 superdan it's not nullable=False, so I think it defaults to being nullable
18:32:02 superdan default is not server_default,
18:32:04 superdan so it's not in the schema AFAIK
18:32:42 mriedem so for every instance mapping with a NULL queued_for_delete, lookup it's instance and see if the instance is deleted (or soft deleted)?
18:33:09 superdan "Defaults to True unless primary_key is also True"
18:33:28 superdan you can still do bulk queries of each I think
18:33:47 mriedem by instance uuid?
18:34:05 mriedem so gimme 50 instance mappings with queued_for_delete=NULL,
18:34:06 superdan yeah, so you query out max_limit mappings,
18:34:11 mriedem right
18:34:17 mriedem and those instances might be spread across multiple cells
18:34:20 superdan and then do a get_by_filters({'uuid': uuids})
18:34:28 superdan well, this appears to be doing one cell at a time no?
18:34:31 superdan it's not targeting
18:34:40 mriedem it's not multi-cell aware
18:34:42 superdan so just limit by cell when you're getting the mappings
18:34:43 superdan right
18:34:44 mriedem like the other migrations
18:35:18 superdan oh I see this is going by cell db first, so it's naturally scoped to a cell
18:35:27 superdan well anyway,
18:35:28 mriedem how do we know what cell we're in?
18:35:42 mriedem we have [database]/connection
18:35:55 superdan should be trivial to limit it per cell even starting from the mapping I think
18:36:37 superdan it seems like it's worth avoiding the need for another marker-record-based migration...am I wrong?
18:36:37 mriedem would you page across cells until you've filled the limit of instances?
18:37:29 mriedem i don't love a marker-based migration, but it works
18:37:37 superdan I think you'd just make this migration thing take a cell mapping, and then let nova-manage tell it what cell it's working on, and then nova-manage can take a cell_uuid or --all-cells like some of our other things
18:38:01 mriedem so this wouldn't be part of nova-manage db online_data_migrations then...
18:38:06 mriedem i don't love that
18:38:07 superdan no
18:38:09 mriedem b/c then it's another one off
18:38:10 superdan it should
18:38:11 superdan no
18:38:15 superdan it should be in there
18:38:31 mriedem we don't currently talk a cell uuid or -all-cells for online_data_migrations
18:38:38 mriedem *take
18:38:39 superdan I thought we had merged or proposed a thing to let that take a cell, but I see not,
18:38:44 mriedem no,
18:38:45 superdan so just make it figure out the current cell or something
18:39:03 mriedem in YVR we asked about making the migration stuff multi-cell aware and ops (cern) said they didn't care about it (nice to have but not necessary for now)
18:39:21 superdan thinking about this I gues: https://review.openstack.org/#/c/519275/
18:39:22 mriedem i'm not sure how we figure out the current cell - we have the [database]/connection config but is that good enough?
18:40:00 superdan we fail to create a cell if you're duplicating that field, so I would think it would be yeah
18:40:08 mriedem about the template?
18:40:13 mriedem if the config is templated,
18:40:18 mriedem how do we do the lookup of the mapping?
18:40:26 superdan config isn't templated, the url in the db is

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