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#openstack-nova - 2017-05-23
17:23:27 cfriesen jaypipes: make that live-migrated. ^
17:24:10 cfriesen not sure how to fix this without either atomic schedule/claim or secondary check on compute and possible reschedule
17:24:34 cfriesen (I guess secondary check could be anywhere post-claim)
17:25:00 jaypipes cfriesen: we can dramatically decrease the length of time that such a decision can be made with claims in the scheduler...
17:26:18 cfriesen jaypipes: agreed,
17:27:49 cfriesen but it might still make sense to allow reschedule within the cell
17:30:45 jaypipes cfriesen: yes, perhaps.
17:31:00 jaypipes cfriesen: trying to avoid that though if possible. (doesn't look like we'll be able to, though)
17:33:53 pabelanger mriedem: dansmith: Ya, for now we are leaning towards updating ansible os_keypair module to support the update functionality
17:34:10 pabelanger then delete / create the key with same name
17:40:45 cfriesen jaypipes: something to consider in the above scenario...if we have an anti-affinity instance migrating from host1 to host2, we probably want to exclude *both* hosts from consideration when scheduling other instances in the same group.
17:42:27 jaypipes cfriesen: sure, no disagreement.
18:00:40 ildikov lyarwood: sfinucan: hi
18:00:46 ildikov lyarwood: sfinucan: if you have some time there're two patches related to the new Cinder attach/detach flow with one +2 already: https://review.openstack.org/#/c/459111/ https://review.openstack.org/#/c/459113/
18:00:55 ildikov lyarwood: sfinucan: tnx :)
18:06:48 openstackgerrit OpenStack Proposal Bot proposed openstack/nova master: Updated from global requirements https://review.openstack.org/467344
18:10:26 efried jaypipes johnthetubaguy mordred Would y'all please have a look at this spec update? Been +2 for a few weeks. https://review.openstack.org/#/c/461481/
18:12:02 efried But the pen IS mightier than the sword, so...
18:12:07 jaypipes :)
18:14:03 jaypipes efried: done.
18:14:10 efried jaypipes Thanks dude.
18:16:42 efried jaypipes Still on my list to ask you for that pointer to the shared resource pool code. Is that a quick answer?
18:17:17 jaypipes efried: https://review.openstack.org/#/q/status:open+project:openstack/nova+branch:master+topic:bp/shared-resources-pike
18:20:58 efried jaypipes Okay, looking through. I know you've slept (in multiple time zones) since then, so to refresh your memory on the conversation: I'm looking to get my compute driver itself to do the registration of its shared storage pool.
18:21:21 jaypipes efried: ah. yeah, sorry.. one sec
18:21:45 jaypipes efried: https://review.openstack.org/#/c/457782/
18:21:49 efried jaypipes As impressive as your SQL construction is... ;-)
18:21:54 jaypipes efried: that's more what you're looking for I think?
18:21:58 efried ...
18:22:20 jaypipes speaking of which... dansmith, if you or bauzas have a chance to review https://review.openstack.org/#/c/457782/, that would be great
18:22:44 efried hmph, I've been watching this change set; but clearly didn't realize what I was looking at...
18:22:48 dansmith oh that fell off, I'll look
18:28:14 efried jaypipes I don't think this is quite what I'm looking for. I do think I'd like to do it from get_inventory(); but what I'm looking to do involves talking to the placement API and saying something like, "Do ya got a shared storage pool with UUID <uuid>? No: Okay, here it is. ==> And this compute host is part of it."
18:29:00 jaypipes efried: yeah, you'll have to wait a bit for a few more patches in that shared-resources-pike series to get to that
18:29:54 efried jaypipes Roger that. If it helps, the words I wrote down while we were chatting were: "scheduler client report"
18:44:32 mordred mriedem: in my ongoing effort to report 'fun' api interactions ...
18:44:43 mordred efried: (I just opened that link, will look in a sec)
18:45:03 cfriesen weird question....if we start with nova version N, and upgrade everything to N+1, am I correct that Service._check_minimum_version() would prevent us from downgrading even if the RPC is explicitly still set to something suitable for version N?
18:45:34 jaypipes efried: https://github.com/openstack/nova/blob/master/nova/scheduler/client/report.py
18:45:54 mordred mriedem: today I learned that GET /os-simple-tenant-usage?start=%s&end=%s&detailed=%s ... which takes an ISO 8601 date string as input for start and ed
18:46:11 mordred mriedem: fails if your ISO 8601 date string includes a timezone offset
18:46:23 jaypipes efried: and an example of usage from the scheduler: https://github.com/openstack/nova/blob/master/nova/scheduler/filter_scheduler.py#L170
18:46:59 mriedem mordred: yeah https://developer.openstack.org/api-ref/compute/?expanded=list-tenant-usage-statistics-for-all-tenants-detail#id365
18:47:10 mordred mriedem: so it is incumbent on a consumer to take their ISO 8601 date string, apply the timezone offset expressed in the string and then submit the string without the timezone offset
18:47:24 jaypipes efried: and where the compute resource tracker calls it: https://github.com/openstack/nova/blob/master/nova/compute/resource_tracker.py#L759-L763
18:47:39 mordred mriedem: indeed - so it is documented, which is nice :)
18:48:45 mordred mriedem: however, also, python-novaclient does this:
18:48:48 mordred return self._list(
18:48:49 mordred "/os-simple-tenant-usage?start=%s&end=%s&detailed=%s" %
18:48:51 mordred (start.isoformat(), end.isoformat(), int(bool(detailed))),
18:48:54 mordred "tenant_usages")
18:49:17 mordred so if the datetime passed to python-novaclient is a datetime that has a tzinfo attached, sadness occurs - because it isn't actually isoformat that is accepted
18:49:44 mordred (this is what results from starting by looking at the novaclient code instead of the docs for how to work an API, btw)
18:50:57 openstackgerrit Dan Smith proposed openstack/nova master: re-Allow adding computes with no ComputeNodes to aggregates https://review.openstack.org/460616
18:51:02 dansmith mriedem: rebased ^
18:51:11 mriedem mordred: it also does this thing https://github.com/openstack/python-novaclient/blob/master/novaclient/v2/usage.py#L32
18:51:53 mriedem which is related to this thing in the api https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/simple_tenant_usage.py#L228
18:52:35 mordred fascinating
18:53:26 mordred mriedem: I'm truly curious as to the reasoning behind defining our own format that isn't the ISO standard but close to it - but it's not super important ... I mostly just learned a new thing today and want to check in and see if it was bug or feature
18:53:53 mriedem changing it would be a microversion
18:54:04 mriedem why it's that way, you'd have to ask vish or someone
18:54:44 sdague or mordred or jaypipes
18:54:47 mordred I don't think it needs to change -since it's clearly documented and has obviously been implemented on purpose -- I've got the conversion call written on my side now
18:54:54 mriedem yeah no sh*t, *those* guys
18:55:01 mordred jaypipes: oh - you're here ... can you tl;dr me? ^^
18:55:35 jaypipes mordred: ya, me here.
18:55:37 mordred mriedem: would I be safe in assuming that anywhere nova takes a date it's gonna be in that format and not full ISO?
18:55:56 mriedem i don't know where else we take a date
18:56:51 mriedem the compute api ref has a standard description for fields in the response that are a datetime
18:57:41 mriedem e.g. https://github.com/openstack/nova/blob/master/api-ref/source/parameters.yaml#L1648
18:57:58 jaypipes sdague: I have no part in the making of os-simple-tenant-usage...
18:58:58 sdague mordred: the best recollections I've got are there are at least 3 different time formats because people picked things oddly (all predates me)
18:59:20 sdague I think the oslo utils actually take any of them and digest into the same thing
18:59:39 sdague that was an early markmc push from when I first showed up
19:02:52 mordred edleafe: ah - that probably makes sense
19:03:07 mordred sdague: nod. hrm - I should ping markmc and ask him what he remembers
19:03:41 mordred I mostly found it weird since we ALSO use the iso8601 library in OpenStack ... so doing work to support a subset of ISO 8601 just seems weird
19:04:32 sdague when did iso8601 get added?
19:04:41 sdague you have to realize, a lot of this code is 2012 era stuff
19:08:41 sdague mordred: simple tenant usage is 7726b3d763a136347f2324e630f0a3cdc60a045b (Aug 2011)
19:08:59 sdague iso8601 is 7726b3d763a136347f2324e630f0a3cdc60a045b (Mar 2011)
19:09:20 sdague it just looks like simple tenant usage was written to python date format and straight to db
19:09:53 mordred sdague: man - 2011 was a long time ago
19:09:57 sdague yep
19:10:00 sdague git log -S for the win
19:10:04 mordred ++
19:10:45 mriedem efried: did you see that nova-specs docs on longer build?
19:10:56 mriedem /home/user/git/nova-specs/doc/source/specs/juno/implemented/pci-passthrough-sriov.rst:412:Citation [VIF_DETA] is not referenced.
19:11:01 mordred sdague: fwiw - today I added a default value to shade for "start" of 2010-07-06 - since it's impossible for an openstack cloud to have usage going back before that :)
19:12:41 mriedem *no longer
19:13:35 efried mriedem "nova-specs docs on longer build"?
19:13:51 efried oh...
19:13:53 mriedem http://logs.openstack.org/81/461481/3/gate/gate-nova-specs-docs-ubuntu-xenial/9e65575/console.html#_2017-05-23_18_19_21_056047
19:13:55 mriedem and local
19:14:06 mriedem started in the last 24 hours
19:15:08 mriedem the citations in that file all look ok to me
19:15:22 efried jaypipes Thanks, will peruse.
19:15:42 efried mriedem Sorry, what does "nova-specs docs no longer build" mean?
19:15:49 jaypipes efried: peruse. persue. do with it what you may :)
19:16:02 mriedem efried: you asked jaypipes to review your nova-specs patch, right?

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