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#openstack-nova - 2017-10-18
12:29:57 janki sean-k-mooney, ya. looks like os-extended-server-attributes is a collection of REST APIs exposed by Nova. right?
12:30:33 sean-k-mooney janki: it was technically a buch of rest apis exposed by a nova api extention
12:31:04 sean-k-mooney janki: as of pike we nolonger support extending the api like that but the existing extions were more or less kept
12:31:59 sean-k-mooney janki: i think the useful ones will be adopted into the main api and the unsed ones will be drop. i would expect the extended server attribute to be adopted in to the server resouce
12:32:14 janki sean-k-mooney, ohk. so I am getting 404 on os-floating-ips and policy error for os-extended-server-attributes. could this be related?
12:32:51 sean-k-mooney janki: if you query with admin prviliges dose the same happen
12:33:16 sean-k-mooney janki: the reason for the clean up spec is that there are two set of policies applied to the extentions
12:33:36 sean-k-mooney the main api policies and the extention level policies that we are looking to remove
12:34:02 janki sean-k-mooney, I dont have acces to the setup. Its jenkins build. But I think the naswer is no. there is 1 more variable in policy.json "os_compute_api:os-floating-ips": "rule:admin_or_owner" so there are not related
12:36:45 sean-k-mooney dumb question im assumeing the setup is using neutron, im not sure how the extentions were enabled in the past but if it was using nova-network you would have no floating-ips
12:37:37 alex_xu janki: it looks like the floating pool isn't there
12:38:22 janki alex_xu, yes. because the API that creates floating ip is failing
12:39:24 alex_xu janki: ok, great, you already know that, I didn't read the full chat log yet :)
12:40:29 janki alex_xu, I am trying to figure out the reason for the API to fail. I checked, with help of efried, that microversion used is 2.1 (< 2.36).
12:42:11 janki alex_xu, also there is policy check failure for os-extended-server-attributes in log but no such failure for os-floating-ips
12:44:33 alex_xu janki: they are sounds unrelated
12:45:09 janki alex_xu, Ya. initially I thought they are but looking at sample policy file, I do think the same
12:48:22 openstackgerrit Jan Zerebecki proposed openstack/nova master: Only log not correcting allocation once per period https://review.openstack.org/508262
12:50:53 openstackgerrit Jan Zerebecki proposed openstack/nova master: Only log not correcting allocation once per period https://review.openstack.org/508262
12:55:22 alex_xu janki: looks like you needn't worry about that policy check failure, the log will be emitted each time when the user doesn't have the permission
12:55:33 alex_xu and that log looks like annoying
12:56:36 janki alex_xu, well then, the next step is look into tempest.conf
13:00:45 alex_xu nova api meeting is running at #openstack-meeting-4
13:01:34 mriedem sdague: johnthetubaguy: can you take a look at this ocata-only fix? https://review.openstack.org/#/c/512406/ turns out we backported something awhile ago that requires some special handling based on the version of libvirt you're running
13:03:39 gmann janki: what is error actually, i can help from tempest.conf side
13:06:28 janki gmann, so I am running tempest for ODL + Pike setup and https://github.com/openstack/tempest/edit/master/tempest/scenario/test_server_basic_ops.py is failing with error https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-pike-upstream-stateful-carbon/36/tempest/tempest_results.html.gz
13:07:05 stephenfin mriedem: Any suggestions on who else I can ask to review https://review.openstack.org/#/c/361140/ in jaypipes' absence?
13:08:06 janki gmann, as per https://developer.openstack.org/api-ref/compute/#create-allocate-floating-ip-address, I verified that microverion is 2.1 and there are no logs about policy failure for os-floating-ips
13:08:28 mriedem stephenfin: i think that dansmith guy is pretty smart
13:09:00 janki gmann, next is to check tempest.conf for proper flag settings
13:10:32 gmann janki: its not policy related, what FIP pool you configured on nova>
13:11:29 janki gmann, I didnot manually configure anything. These logs are from jenkins build. Which file would those be in? I can dig that file up
13:11:54 stephenfin mriedem: I agree: dansmith is a super smart guy who'd surely love to review https://review.openstack.org/#/c/361140/
13:11:57 gmann janki: sure in api meeting, ll ping/debug after that
13:12:18 janki gmann, ack.
13:13:08 stephenfin Then again, if jaypipes is back from the dead, he might also like to review https://review.openstack.org/#/c/361140/ ...
13:13:14 stephenfin No rest for the weary :)
13:26:42 efried stephenfin I'm probably just missing something fundamental on https://review.openstack.org/#/c/361140/
13:29:28 lyarwood mdbooth: re https://github.com/openstack/nova/commit/29735973336b1038a2a9fb9072049fe3ed151502 - do you recall why context.auth_token isn't set?
13:29:48 mdbooth lyarwood: looking
13:29:51 lyarwood mdbooth: https://github.com/openstack/nova/commit/5e650e3681d40069dacf1ea2e43b07b362cf1bc3 that introduced the workaround doesn't really say why it isn't there via init_host
13:29:54 cdent efried: going back through the log looking at the conversation you had with sean-k-mooney and rgerganov; where in the powervm universe is the mapping from rp uuid to <other> going to live?
13:30:42 stephenfin efried: The problem I'm trying to get at is, even if we somehow managed to keep non-PCI-needing instances off of PCI-having NUMA nodes, we can still end up in the situation where we have no free PCI-having NUMA nodes for PCI-needing instances
13:31:09 mdbooth lyarwood: Could it be cause there's no request context at that point?
13:31:18 mdbooth i.e. no user, no api call?
13:31:26 efried cdent That's a pretty big TBD. We don't have any persistent data on our "hypervisor" (the NovaLink partition), which is a fairly fundamental point of architecture. You're supposed to be able to trash the partition and recreate it with no loss.
13:31:32 stephenfin This approach reduces the possibility but it doesn't mitigate it entirely. We want to use the two in tandem, which is what you've kind of hinted at (I think)
13:31:45 lyarwood mdbooth: yeah sorry, https://github.com/openstack/nova/blob/master/nova/context.py#L279
13:31:59 sean-k-mooney stephenfin: that was the usecase we created https://github.com/openstack/nfv-filters/blob/master/nfv_filters/nova/scheduler/filters/aggregate_instance_type_filter.py to address
13:32:11 openstackgerrit Chris Dent proposed openstack/nova-specs master: Add spec for symmetric GET and PUT of allocations https://review.openstack.org/508164
13:32:16 efried stephenfin Yes. You'll never get around that limitation. Unless you want to totally deny non-PCI-needing instances from booting on PCI-having NUMA nodes. Which ain't reasonable IMO.
13:32:43 sean-k-mooney it allows you to create aggregates of nodes with scarce resouces and require that they are requested in the flavor to schedule to those nodes
13:32:55 stephenfin efried: But you will with this spec, which allows booting PCI-needing instances from using non-PCI-having NUMA nodes
13:32:58 efried cdent Off the cuff, the idea would be to make some part of the RP relate to some part of whatever thingy we're "mapping" to.
13:33:16 sean-k-mooney this filter will work with traits in request in the flavor too by the way
13:33:19 mdbooth lyarwood: Yeah, that would be required for a glance request, I guess
13:33:24 stephenfin sean-k-mooney: I saw that, but it wasn't too inflexible, hence https://blueprints.launchpad.net/nova/+spec/reserve-numa-with-pci
13:33:41 mdbooth Although there's useful work it can do without that
13:33:50 sean-k-mooney that is your new weigher right
13:34:00 lyarwood mdbooth: it's the cinder encryption metadata lookup that's failing at the moment
13:34:08 sean-k-mooney stephenfin: i tought that merged in pike?
13:34:24 efried stephenfin The "problem" you won't get around is where I boot a hundred non-PCI-needing instances and run out of non-PCI-having NUMA nodes after the first fifty, so I start using my PCI-having NUMA nodes. Once those are full, I can no longer boot "required"-affinity PCI-needing instances.
13:34:28 stephenfin sean-k-mooney: Correct. If you had to divide your cloud into aggregates for PCI devices, it made it very inflexible if you wanted to, say, start using a lot of PCI-having instances or vice versa
13:34:43 stephenfin sean-k-mooney: It did. I'm saying https://review.openstack.org/#/c/361140/ forms a one-two combo :)
13:35:03 mdbooth lyarwood: Hmm, yeah. That's not gonna work unless we've got some special-sauce cinder admin login, or we cached it.
13:35:57 stephenfin efried: Yup, there's nothing we can do about that, I'm afraid. If you want to use 'required' then this is what you signed up for. Go buy more PCI devices :P
13:36:03 sean-k-mooney stephenfin: right we really need to merge https://review.openstack.org/#/c/361140/29/specs/queens/approved/share-pci-between-numa-nodes.rst and implemented this cycle it was originally ment to work in icehouse..
13:36:33 efried stephenfin Cool, then we're on the same page mentally; but then I don't think that chunk of the spec is expressing any reasonable "Alternatives".
13:36:44 cdent efried: k, thanks. I’d rather we avoid putting that kind of mapping into placement if possible, but it seems there is a fairly generic need for a translation. I presumem using rp.name is insufficient. Next comes the sort of config info that rgerganov mentioned (things like the IP for the shared storage piece?). That, to me, especially should not go into placement as we’re doing a serious mission creep at that point.
13:36:46 stephenfin efried: However, the https://blueprints.launchpad.net/nova/+spec/reserve-numa-with-pci should help mitigate that, and the 'preferred' policy in https://review.openstack.org/#/c/361140/ should solve it completely
13:36:54 sean-k-mooney stephenfin: as an employee of a hardware vendor that sells pic devices i feel oblidged to +1 that responce :P
13:37:02 stephenfin *if* you're ok living with the downsides (possible performance impact)
13:37:13 stephenfin sean-k-mooney: :P
13:37:31 stephenfin efried: Sure, I'm happy to drop it, if that makes sense? :)
13:37:46 stephenfin *if that would help?
13:37:57 efried stephenfin If you don't mind, perhaps give me a crack at rewording it?
13:38:04 stephenfin efried: Knock yourself out
13:38:32 openstackgerrit Matt Riedemann proposed openstack/nova-specs master: Add pagination and timestamp filtering support for os-migrations API https://review.openstack.org/506030
13:38:46 markus_z Here's a doc change waiting for review for 5 weeks: https://review.openstack.org/#/c/476188/
13:38:55 stephenfin efried: Also, saw your reply on the "two spaces indicate age" comment. It was just an amusing article I read once upon a time that stuck with me. Not an actual ageist thing or anything!
13:39:19 efried cdent I agree with you (at least in the sense that I've accepted the stated limitations of the placement architecture). We could conceivably get some mileage out of overloading the 'name' field, or embedding information into gross custom traits. But I would be wanting to look for cleaner alternatives pretty hard before resorting to that.
13:39:21 stephenfin markus_z: Sure, I'll take a look
13:39:27 markus_z stephenfin: thanks!
13:39:58 openstackgerrit Stephen Finucane proposed openstack/nova master: docs: Explain the flow of the "serial console" feature https://review.openstack.org/476188
13:41:33 efried stephenfin No offense taken, of course. It's an argument that's been made to me before, so you may have caught some blowback from arguments I've had with others who were... um... more serious about it (to the point of -1ing stuff). My take on it is that the reasons for "never do that" don't apply to programmers.
13:42:55 dansmith mriedem: tell me you don't care and I'll +W: https://review.openstack.org/#/c/512406/3
13:44:17 openstackgerrit Ghanshyam Mann proposed openstack/nova-specs master: Spec for API extensions policy removal https://review.openstack.org/508101
13:44:48 efried stephenfin Before I start, can you confirm that https://review.openstack.org/#/c/361140/29/specs/queens/approved/share-pci-between-numa-nodes.rst@131 was indeed supposed to be "without"?
13:45:29 gmann johnthetubaguy: sdague alex_xu ^^ updated spec - https://review.openstack.org/#/c/508101/
13:45:46 mriedem dansmith: i could fix quick, but don't care too much
13:45:48 gmann janki: where i can see the nova logs? i see all networking things there
13:46:10 stephenfin efried: Ah, cool, just making sure. I don't do it because it was never something that was taught to do, though I have been known to strip them out when I rewrite stuff. All good point though
13:46:15 stephenfin efried: Yes, without
13:46:18 dansmith mriedem: if it were master I'd want it fixed, but I guess you could make the argument that it doesn't matter on a frozen branch
13:46:38 peter-hamilton hi everyone, i'm hoping to get final feedback on the updated cert validation spec: https://review.openstack.org/#/c/488541/
13:46:44 mriedem dansmith: i'll fix it quick, 2 minutes
13:46:45 peter-hamilton let me know if you have any questions
13:46:48 janki gmann, https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-pike-upstream-stateful-carbon/36/control_1/n-api.log.2017-10-16-060444.gz
13:47:15 mdbooth dansmith: The problem with that is the hair pulling when some random other test fails because of it, and then you end up having to bisect a testrun to determine the ordering which causes a failure.
13:47:21 janki gmann, nova-cpu logs https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-pike-upstream-stateful-carbon/36/compute_1/n-cpu.log.2017-10-16-060456.gz

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