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#openstack-nova - 2018-01-08
18:09:27 mriedem andreas is usually pretty quick to hit these though
18:10:01 dtantsur yep
18:10:14 mriedem dtantsur: does ironic-tempest-dsvm-ipa-wholedisk-agent_ipmitool-tinyipa-multinode also test the multitenant stuff?
18:10:24 mriedem *multitenant network
18:10:30 dtantsur mriedem: that's the correct name of that job, so yes
18:10:46 mriedem oh maybe it was renamed and we just never noticd
18:10:54 dtantsur I think so
18:14:26 openstackgerrit Matt Riedemann proposed openstack/nova master: Ironic: Get IP address for volume connector https://review.openstack.org/468353
18:15:42 jaypipes mriedem, jgriffith_: your thoughts on this? https://review.openstack.org/#/c/528740/
18:16:05 mriedem jaypipes: we can't change that as a bug fix
18:16:06 mriedem imo
18:16:14 mriedem it's an api change
18:16:24 jaypipes mriedem: oh, I agree... I don't think it's actually something we should do *at all*.
18:16:26 mriedem https://blueprints.launchpad.net/nova/+spec/volume-backed-server-rebuild
18:17:05 mriedem i've -2ed for now just due to procedure
18:17:25 mriedem i'm sure people want rebuild of volume-backed instances, but i'm not interested in that rats nest atm
18:19:16 cdent efried, jaypipes I've stubbed in https://blueprints.launchpad.net/nova/+spec/placement-aggregate-generation . Since it is microversion, officially we need a spec.
18:19:42 ameeda Hi , when I try to execute this command "mistral-db-manage --config-file /etc/mistral/mistral.conf populate", I got many errors as this http://paste.openstack.org/show/640994/
18:20:25 jaypipes cdent: you want to handle the spec?
18:20:33 cdent yeah, will do
18:20:47 mriedem that's rocky at this point right?
18:20:57 jaypipes ameeda: wrong channel... try #openstack-mistral
18:21:08 ameeda Thanks !
18:21:14 jaypipes mriedem: which one?
18:21:22 jaypipes mriedem: the placement agg gen?
18:21:24 mriedem aggregates generation
18:21:37 mriedem or is that blocking something for queens?
18:22:00 jaypipes mriedem: well, not *really* but it can be seen as more of a bug fix that enables drivers like vcenter and powervm
18:23:44 mriedem ok, but we're not prioritizing sharing providers in rocky right?
18:23:46 mriedem *queens
18:23:58 cdent mriedem: it's discussed near here at today's meeting http://eavesdrop.openstack.org/meetings/nova_scheduler/2018/nova_scheduler.2018-01-08-14.00.log.html#l-127
18:24:07 cdent it's not clear what the time table is
18:24:25 mriedem it's a rhetorical question :)
18:24:33 mriedem we said in denver that we weren't focusing on sharing providers in queens
18:24:37 mriedem and nested resource providers was the goal
18:25:05 cdent sure, I'm not disputing that. I'm merely asking where management of aggregates fits in
18:25:13 mriedem do aggregates butt up against nested providers?
18:25:25 cdent I'm very happy to not do the work, but in the meeting it was wanted. If we don't want it, cool.
18:25:30 mriedem "butt up" is the technical term
18:25:36 cdent quite
18:25:38 mriedem well, want is fine,
18:25:47 mriedem i just don't want it to be a distraction for queens
18:25:55 mriedem queuing it up for rocky is cool
18:26:16 mriedem reminds me i need to start an etherpad for various rocky ptg stuff, to include spill over from queens
18:26:22 cdent I'm happy to let jaypipes and efried decide. I simply volunteered to do the implementation.
18:27:13 jaypipes mriedem: rocky is fine
18:27:59 mriedem cdent: jaypipes: https://etherpad.openstack.org/p/nova-ptg-rocky
18:28:10 mriedem now i've forgotten what i wanted to put on there from friday :(
18:28:10 cdent ack
18:28:19 mriedem oh yeah
18:29:31 cdent mriedem: If we're punting that to rocky, I don't reckon we need to put it on the ptg agenda, we talked it to deaht already today. I'm sure we'll have plenty of stuff more interesting. So I'll kill it.
18:30:12 mriedem i'll at least target the bp to rocky in launchpad so it's in the list
18:30:42 jaypipes mriedem: the aggregate-affinity one would be good to add to the ptg agenda. I'll do that.
18:31:00 mriedem yeah definitely while we have ironic people around
18:57:31 jaypipes oh shitbuckets.
19:03:16 openstackgerrit Jay Pipes proposed openstack/nova master: func tests for nested providers in alloc candidate https://review.openstack.org/531443
19:03:17 openstackgerrit Jay Pipes proposed openstack/nova master: placement: _get_trees_matching_all() https://review.openstack.org/531512
19:03:17 openstackgerrit Jay Pipes proposed openstack/nova master: add _has_provider_trees() utility function https://review.openstack.org/531474
19:10:31 jaypipes efried: for n-r-p traits handling, we agreed that the following is true, right? "if user requests traits X, Y, and Z and at least one provider within a tree has one of each of those traits associated with it, then collectively the tree meets the required traits constraint"
19:11:35 jaypipes efried: or did we instead say "the providers **that end up providing the resources involved in the request** must collectively be associated with all of the required traits"?
19:12:12 jaypipes edleafe, mriedem, dansmith: your thoughts welcome on ^^
19:12:59 dansmith until we have the more expressive query language, neither is really what we want, right?
19:13:10 dansmith and we kinda have to do the "any" instead of "all" until that point I thought
19:16:18 jaypipes dansmith: let's say I have a compute node with 24 VCPU and 32768G RAM with two child providers representing two PFs. One PF has trait X and one has trait Y. The one with trait X has inventory available for 2 VFs. the PF has no more inventory of VFs. If I request 2 VCPU, 1024 MEMORY_MB and 1 SRIOV_NET_VF, along with required_traits=Y. should the compute node be returned? I would say "no"...
19:16:31 dansmith wow 32T of ram?
19:16:37 jaypipes heh
19:16:41 jaypipes you get my drift..
19:17:06 dansmith it just means we have to tag everything with every trait right?
19:17:23 dansmith like you'd have to tag a compute node with "has-nvidia" so that you could ever get a gpu
19:19:05 jaypipes dansmith: no, that's not quite what I'm getting at... I'm wondering whether the "collectively meets the required traits constraint" should only consider those (child) resource providers that would be providing the resources for the request. In the case described above, the child provider that has the required trait Y does not provide the inventory of SRIOV_NET_VF for the request. Instead, the child provider with trait X is providing that
19:19:06 jaypipes inventory.
19:19:47 dansmith well, I think I get that, I'm just not sure how you're going to scope it to the right thing,
19:19:54 jaypipes but "collectively", the provider tree representing the compute node and all its child providers "meets the constraints"
19:20:03 dansmith meaning how placement is going to know that "has required trait X" applies to the vif and not the disk
19:20:25 dansmith since the query didn't scope it as such
19:20:35 jaypipes dansmith: well, I can apply the filter on traits *after* already processing the filter for resource amounts.
19:20:46 dansmith right,
19:20:53 dansmith which will filter out disks without trait X yes?
19:20:59 jaypipes right
19:21:09 dansmith which means you don't get any disk, which isn't a useful thing if you're trying to boot an instance, no?
19:22:06 jaypipes well, that would just mean that this compute node would not be returned in the GET /allocation_candidates query since the required traits are not associated with the providers that would end up providing the resources for the request
19:22:36 dansmith exactly
19:22:41 dansmith which is what I was saying:
19:22:51 dansmith you'd have to tag everything with X to make it come out properly
19:23:11 dansmith your disk and cpu and gpu would all have to have X applied so that you could ask for things with trait X,
19:23:31 dansmith but that doesn't make sense, assuming X is a networky trait you're using to pick which VF/PF/whatever you're looking for
19:23:37 jaypipes right
19:23:47 dansmith okay now I'm confused that you agree
19:23:57 jaypipes I think I've answered my own question :)
19:24:17 dansmith ....mmmokay :)
19:24:26 jaypipes just needed a willing sounding board.
19:24:32 jaypipes or unwilling I suppose ;)
19:24:54 dansmith heh
19:26:15 mriedem jaypipes: i don't know the answer to that - it was one of the questions i asked when that change in the placement api merged, i.e. "what are the rules on this new query parameter?"
19:26:32 mriedem specifically the "in_tree" parameter
19:26:52 jaypipes mriedem: this isn't about that parameter (that parameter doesn't exist for GET /allocation_candidates
19:27:10 jaypipes mriedem: but I can see a similar problem/point with that
19:34:53 openstackgerrit Lee Yarwood proposed openstack/nova master: libvirt: Collocate encryptor and volume driver calls https://review.openstack.org/460243
19:36:57 edleafe jaypipes: (catching up) I wasn't clear if the tree for that compute node would contain everything (i.e., both child PFs), or only the children needed to satisfy the request
19:37:55 jaypipes edleafe: yes, tree would contain both PFs.

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