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#openstack-nova - 2017-05-24
18:46:51 mriedem i don't know what would be different between CLI and a direct curl request to the api
18:47:16 sdague tidwellr: ..... why is the instance UUID uppercased?
18:47:19 sdague 5100C340-8967-4DB1-97F7-BFA1C155F250
18:47:20 tidwellr the difference I'm thinking is the way the user is getting a token
18:48:07 sdague because, you know, that could actually totally cause this problem if that id is not case matched to the db id
18:48:12 melwitt mriedem: I was thinking I'm gonna just write a functional test that tests the counting across cells for server group members, without trying to do anything more complicated with scheduling. I'm thinking to try to set up two cell databases, put an instance in each that is associated with the same group, and see if the counting function returns the right thing
18:48:26 sdague because... mysql
18:49:02 mriedem melwitt: that's probably a good idea
18:49:18 melwitt cool
18:49:50 dansmith melwitt: not that you asked me, but I agree too :)
18:50:09 tidwellr sdague: that makes sense, I hadn't noticed that :)
18:50:26 mriedem ah...
18:50:31 sdague tidwellr: yeh, I was just looking for things that seemed odd
18:50:31 melwitt dansmith: votes of confidence always good :)
18:50:33 mriedem and because this extension is using the id from the request,
18:50:37 mriedem and not what's in the resp_obj
18:50:42 mriedem which could be different case
18:50:48 sdague tidwellr: no, it's like a legit nova bug
18:51:09 sdague it's just not an edge I've seen people cross
18:51:12 dansmith sdague: not a legit bug, just *like* a legit bug, yes?
18:51:39 mriedem tidwellr: can you report a bug?
18:51:51 sdague tidwellr: could you figure out if the user works if they use the lower case version of the uuid?
18:51:58 tidwellr sdague: sure, I can do that
18:52:00 mriedem there is a simple fix i can think of, which is make that extension behave like the rest,
18:52:11 sdague mriedem: it is behaving like the rest
18:52:23 sdague mriedem: I'm trying to understand why you think it isn't :)
18:52:43 mriedem https://github.com/openstack/nova/blob/stable/mitaka/nova/api/openstack/compute/hide_server_addresses.py#L62 is looking up the instance in the cache using the id parameter to the show() method
18:52:52 mriedem which is passed in via the wsgi extension processing code, right?
18:52:56 melwitt mysql is case-insensitive by default, right? it's the request instance cache in the REST API that is case-sensitive (python)
18:53:05 mriedem and i'm assuming is what came in on the request, the {server_id} part that is upper case
18:53:19 sdague mriedem: sure
18:53:40 mriedem sdague: if you look at all of the other extensions, they do something like resp_obj.obj['server']['id']
18:53:49 sdague oh, right
18:53:53 mriedem which is presumably the id for the server obj that's coming out of the db
18:53:56 mriedem which is why it matches
18:54:02 sdague right, makes sense
18:54:13 mriedem please state that i'm correct for the record
18:54:17 mriedem etc
18:54:17 mriedem let the record show
18:54:25 sdague heh
18:55:27 mriedem tidwellr: can you get a bug reported?
18:55:36 mriedem we can backport to newton, but you're on your own for mitaka
18:55:56 tidwellr mriedem: fair enough, I'll report the bug
18:57:10 sdague mriedem: you want to whip up the fix? or should I?
18:57:16 tidwellr mriedem sdague: thanks for looking into this
18:57:52 mriedem sdague: i can wip it
18:57:57 mriedem btw, way to break s390x guys
18:58:10 mriedem "it's all fun and games until s390 shows up"
18:58:15 mriedem where is jlk when we need him?
18:58:56 sdague tidwellr: no prob. I would love to know why the client application was upper casing things
18:59:41 sdague mriedem: that the etcd thing?
18:59:51 mriedem yeah
19:00:04 sdague it's a good thing that wasn't discussed on the mailing list for the last month
19:00:11 mriedem but also something quotable from jlk back at the first meetup at intel, talking about zvm
19:00:25 mriedem sdague: it actually caught a lot of people by surprise,
19:00:27 mriedem non-dev people
19:01:20 sdague mriedem: sure, but if you are going to be maintaining a non primary architecture, it seems like you should keeping an eye on things
19:01:53 mriedem i don't actually care,
19:01:59 mriedem i just thought it was kind of amusing
19:02:01 sdague heh
19:02:11 mriedem now that i'm no longer paid to care
19:02:14 mriedem \oo/
19:02:16 mriedem whoa
19:02:18 mriedem that came out wrong
19:02:21 sdague so, to be fair, there was all this work in the devstack patch that looked multiarch
19:02:30 sdague but, then when I started to add sha256sums this morning
19:02:38 sdague I found that nothing except amd64 existed
19:02:43 sdague but ship had sailed
19:03:52 openstackgerrit Matt Riedemann proposed openstack/nova master: Provide original fault message when BFV fails https://review.openstack.org/467715
19:05:54 tidwellr sdague: well, it turns out the user has an app that was forcing the UUID to upper case
19:06:03 sdague tidwellr: heh
19:06:15 melwitt there's an app for that
19:07:38 sdague tidwellr: is that changable?
19:07:53 sdague or is it going to be easier for you to patch openstack?
19:08:20 tidwellr sdague: yes, I had them change their app to force everything to lower case and all is right in the world
19:08:32 sdague heh
19:08:51 sdague tidwellr: nice
19:09:02 tidwellr sadgue: it would be nice if that was sanitized by nova, but that's pretty low on my priority list :)
19:09:07 sdague tidwellr: fwiw, this is the mitaka patch that would fix things https://gist.github.com/sdague/863d31d4dba44193c6095b21566cd7fa
19:09:48 sdague tidwellr: it actually came up recently, our uuid validation is much looser than people realized, this is probably another instance of that
19:13:50 openstack Launchpad bug 1446850 in python-novaclient "flavor-show of mixed case flavorid fails" [High,Fix released] - Assigned to melanie witt (melwitt)
19:13:50 melwitt be careful with forcing everything to lowercase in clients though, we had a bug a long time ago in novaclient where it tried to lowerc flavor names but they could have been created with mixed case and could cause them not to be found in request cache https://bugs.launchpad.net/python-novaclient/+bug/1446850
19:14:10 mriedem melwitt: what about mogan indeed http://git.openstack.org/cgit/openstack/mogan/tree/mogan/network/api.py#n120
19:14:13 mriedem any of that look familiar?
19:14:39 tidwellr sdague: thanks, I'll get a bug filed by EOD
19:15:33 sdague tidwellr: cool
19:15:57 melwitt mriedem: yes ... surprised they wanted to use that, heh
19:17:50 mriedem finding out how to write a unit test for this hide_server_addresses thing is going to be the hard part
19:19:44 sdague mriedem: yeh, you can't use the real test condition, because sqlite goes case sensitive
19:22:36 sdague I don't remember if we ever landed the patch to run real tests with mysql backend for the other case sensitive issues
19:26:02 openstack Launchpad bug 1693335 in OpenStack Compute (nova) "UUID case sensitivity causing unfriendly and unexpected API errors" [Undecided,New]
19:26:02 tidwellr sdague mriedem: https://bugs.launchpad.net/nova/+bug/1693335
19:29:13 mriedem thanks
19:33:28 ckopper that adds a flavor extra_spec `hw:hide_kvm` to set the correct options through libvirt and was wondering what the correct procedure to get this proposed for upstream was.
19:33:28 ckopper Hi! I am new to nova and openstack development, so I apologize in advance if this is the wrong place to ask or if there is a certain procedure for this. I have a local use case for OpenStack where we want to use PCI passthrough for consumer GPUs which works well in principle. However the NVidia driver checks if it is run within a VM and refuses to load for consumer cards if you don't set a certain KVM/qemu flag (`kvm=off`). I have a local patch
19:33:33 ckopper The patch itself is pretty trivial (mostly tests): https://gist.github.com/claudiok/5dd9fd01b9628e35f0b48884471e58cf
19:34:02 ckopper I assume this needs a spec and blueprint and then submission to gerrit for review but I thought I would check here first
19:34:16 openstackgerrit Sean Dague proposed openstack/nova master: WIP: request_id passing to neutron https://review.openstack.org/467242
19:38:07 mriedem ckopper: lucky for you someone is already working on that https://review.openstack.org/#/c/459753/
19:38:55 ckopper Haha - I have to admit I searched for this but apparently missed this review

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