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#openstack-nova - 2020-07-02
10:06:44 openstackgerrit Lee Yarwood proposed openstack/nova stable/rocky: fix scsi disk unit number of the attaching volume when cdrom bus is scsi https://review.opendev.org/730312
10:08:53 lyarwood ops ignore that, just catching up on stable today and didn't check the ML first
10:30:09 gibi stephenfin: I have a question in https://review.opendev.org/#/c/730382
10:34:20 stephenfin gibi: Replied. Will update now
10:34:40 openstackgerrit Wenping Song proposed openstack/nova master: Admin auth token to call Cyborg API by Nova https://review.opendev.org/739011
10:35:19 gibi stephenfin: what is your view about notifying the out of tree driver authors?
10:35:28 stephenfin Yup, I'll do that too
10:36:22 gibi cool
10:36:47 gibi regarding tox -e mypy. yes, removing the quotes does not make that command fail
10:36:55 gibi which is strange
10:37:17 gibi I deleted .pyc files and still
10:41:42 lyarwood gmann: just catching up with your work on stable, thanks again for driving all of this.
10:42:03 lyarwood gmann: just trying to fixup stable/rocky for openstack/nova
10:42:16 lyarwood gmann: I'll move the remaining grenade jobs to nv
10:42:39 lyarwood gmann: I also noticed debtcollector is borking ubuntu-xenial based nodes as it requires >= py3.6
10:43:09 lyarwood gmann: remind me, is it better to handle this in openstack/requirements or each project on stable?
10:43:23 lyarwood https://zuul.opendev.org/t/openstack/build/0e880aa891de40c2ad9d07916cb9bf5b/log/job-output.txt#3312 <- for reference
10:48:11 lyarwood ah wait that isn't a uc issue
10:49:11 lyarwood https://github.com/openstack/devstack-gate/blob/master/devstack-vm-gate-wrap.sh#L519-L520
10:51:16 openstackgerrit sean mooney proposed openstack/nova master: catch libvirt exception when nodedev not found. https://review.opendev.org/739017
10:52:10 sean-k-mooney1 bauzas: stephenfin ^ that is the minimal change im working on the full fix now
10:53:15 stephenfin lyarwood: enabling this should resolve that for us, but I'm not sure if it's available there https://github.com/pypa/pip/issues/988 Assuming not, we probably want to be using upper-constraints there?
10:54:28 lyarwood stephenfin: yeah you would think we want to apply uc here somehow
10:54:44 lyarwood stephenfin: but as this is branchless I'm not sure how that works tbh
10:54:47 stephenfin sean--k-mooney: you've a double hyphen there, btw ;)
10:54:51 lyarwood I'm sure there are examples somewhere
10:54:58 sean--k-mooney lyarwood: there is an upperconstratis for each stable branch
10:54:59 stephenfin isn't the branch an environment variable in zuul?
10:55:13 sean--k-mooney ah thanks
10:55:49 lyarwood stephenfin: yup I'm sure there are examples somewhere
10:56:22 sean-k-mooney i shoudl really jsut drop the k since i hate my middel name and never use it but i would have to alther my config file and thats more effort then i care about :)
10:56:58 openstackgerrit Lee Yarwood proposed openstack/nova stable/rocky: Make greande jobs n-v for EM and oldest stable https://review.opendev.org/739020
10:58:50 lyarwood sean-k-mooney: sorry yeah us isn't branchless, devstack-gate is.
10:58:56 lyarwood uc*
11:00:15 sean-k-mooney ah ok
11:00:32 sean-k-mooney if you set it in the stable/ version of requirements
11:00:45 sean-k-mooney then it will be applied to devstack gate too right
11:00:53 gokhani hi nova folks, I wonder if we can use gpu virtualization on ubuntu kvm compute nodes? In nvidia docs, I can't see support of ubuntu kvm hypervisor ( https://docs.nvidia.com/grid/7.0/product-support-matrix/index.html ). Is there any suggestions for gpu virtualization in an OpenStack environment which works on ubuntu 18.04?
11:00:55 sean-k-mooney unless this is in unit tests
11:01:12 sean-k-mooney even then you can set it via an env var
11:01:48 sean-k-mooney gokhani: if you can install the driver then proably but they dont package for debian
11:02:42 sean-k-mooney if they are using dkms then you could proably use ailen too install the rpm
11:02:56 sean-k-mooney not sure if it would work however
11:03:15 sean-k-mooney gokhani: form a nova point of view we dont care
11:03:30 sean-k-mooney nvida driver support is the limiting factor
11:04:50 sean-k-mooney gokhani: https://www.teradici.com/web-help/ter1702003/2.8/Content/_Graphics%20Agent/Installing/Linux/installing_nvidia_linux_ubuntu.htm
11:05:50 sean-k-mooney that might just be the guest driver
11:11:55 gokhani sean-k-mooney, I have a supermicro server which has 4 nvidia tesla v100-SXM2 gpu cards and nvidia has tesla driver for ubuntu 18.04 (https://www.nvidia.com/Download/driverResults.aspx/160638/en-us). but for virtual gpu software nvidia doesn't give debian package. may be I need to also consult nvidia.
11:12:27 sean-k-mooney gokhani: you need a different driver for grid
11:12:45 sean-k-mooney teslsa cards are supported on ubunut but i dont think grid is
11:12:52 sean-k-mooney on the host at least for vgpu
11:13:11 sean-k-mooney that does not mean you cant get it to work but yes you should contact nvidia
11:13:49 sean-k-mooney you will also need to buy the approriate licenses and set up the server to delegate the licneses to your compute nodes
11:18:22 gokhani sean-k-mooney, ok ı see. initially I wanna test vgpu on openstack and then if everything goes well, we are planning to buy appropriate licenses. If I can't get it to work on ubuntu, I will try centos/rhel.
11:19:23 sean-k-mooney you cna use a low res gpu without cuda without a license i think
11:20:10 sean-k-mooney so you can test you can boot a vm but not use if for useful work beyond a slighly better vnc/spice console experinece
11:22:09 gokhani sorry what do you mean with *res ?
11:22:32 sean-k-mooney resolution e.g i think its capped at 720p
11:24:47 lyarwood sean-k-mooney: sorry back, https://github.com/openstack/devstack-gate/blob/master/devstack-vm-gate-wrap.sh#L519-L520 is the issue, I don't think we actually have requirements pulled down for the correct branch at this point
11:25:11 sean-k-mooney lyarwood: zuul should have cloned it
11:25:33 sean-k-mooney it does that before devstack-gate runs as far as i know
11:27:47 sean-k-mooney so i think you can jsut pass -c /opt/git/openstack/requirements/upper-constriats.txt
11:28:07 lyarwood hmmm I think this might actually be fixed, I can't reproduce locally
11:28:23 gokhani sean-k-mooney, ok if I see correctly, for testing ı can test gpu virtualization with no license.
11:30:20 sean-k-mooney gokhani: i belvie so just with reduced capablities
11:30:27 sean-k-mooney bug you can confirm the hardware works
11:35:01 gokhani sean-k-mooney, I am confused. from nova point for using nvidia vgpu capabilities, do I need also nvidia vgpu software on my server or it is built in function in nova ? ı mean tesla or grid driver is enough for nova except licenses ?
11:41:50 sean-k-mooney gokhani: you need the vgpu software on your server
11:42:05 sean-k-mooney nova just has the ablity to tell libvirt to configure it
11:42:13 sean-k-mooney well vms that use vgpus
11:43:58 sean-k-mooney gokhani: the lices are ativly issued by a server like windows linces so you need to run an instance of that licensing serverr somewhere and you need to configre the hosts to phone home ot that server everytime a vms is booted with a vgpu to claim a lisence
11:44:18 sean-k-mooney gokhani: this should be all coverd in the nvida docs
11:44:31 sean-k-mooney its not specific to nova
11:57:05 gibi stephenfin: left a bunch of notes in https://review.opendev.org/#/c/631363 . I can be convinced to do the functional test coverage in a follow up
12:06:09 openstackgerrit Huaqiang Wang proposed openstack/nova master: objects: Introduce the 'CPUAllocationPolicy.MIXED' enum https://review.opendev.org/716267
12:06:10 openstackgerrit Huaqiang Wang proposed openstack/nova master: Calculate the CPU usage for mixed instance https://review.opendev.org/716269
12:06:10 openstackgerrit Huaqiang Wang proposed openstack/nova master: Validate CPU pinning configuration for mixed instance https://review.opendev.org/716268
12:06:10 openstackgerrit Huaqiang Wang proposed openstack/nova master: libvirt: apply mixed instance CPU policy https://review.opendev.org/728481
12:06:11 openstackgerrit Huaqiang Wang proposed openstack/nova master: scheduler: mixed instance CPU resource translating https://review.opendev.org/728482
12:06:12 openstackgerrit Huaqiang Wang proposed openstack/nova master: flavor: Enable 'hw:cpu_dedicated_mask' for creating a mixed instance https://review.opendev.org/714706
12:13:10 jsuchome gibi: Hi, I've created https://review.opendev.org/#/c/738738/ for you
12:13:45 gibi jsuchome: thans!
12:13:47 gibi thanks
12:17:11 gokhani sean-k-mooney, thanks for your useful information. After consulting to nvidia, I will decide.
12:54:43 openstackgerrit Stephen Finucane proposed openstack/nova master: Add support for resize and cold migration of emulated TPM files https://review.opendev.org/639934
12:54:43 openstackgerrit Stephen Finucane proposed openstack/nova master: Add emulated TPM support to Nova https://review.opendev.org/631363
12:54:43 openstackgerrit Stephen Finucane proposed openstack/nova master: virt: Add 'context', drop 'network_info' parameters for 'unrescue' https://review.opendev.org/730382
12:56:58 stephenfin dansmith: Can you look at https://review.opendev.org/#/c/683043/ again today?
13:16:44 openstackgerrit Lee Yarwood proposed openstack/nova stable/rocky: Make greande jobs n-v for EM and oldest stable https://review.opendev.org/739020
13:35:39 openstackgerrit Lee Yarwood proposed openstack/nova stable/rocky: fix scsi disk unit number of the attaching volume when cdrom bus is scsi https://review.opendev.org/730312
13:41:39 isakgicu Hi guys, is it possible to convert a file from /var/lib/nova/instances/_base to an image for glance ?
13:44:59 isakgicu for example, accidentally an image from glance was deleted after instances where created, but I know which file from /var/lib/nova/instances/_base/ is an actual copy of that image, is it possible to make an image from /var/lib/nova/instances/_base/ files ?
13:46:15 lyarwood isakgicu: yeah assuming it's just a RAW file you should be able to copy it and upload it as a fresh image into glance
13:47:20 isakgicu thank you for quick answer !
13:47:24 isakgicu gonna try
15:04:51 gmann lyarwood: np! now we have devstack is up for stable/rocky - https://review.opendev.org/#/c/735615/9
15:05:13 gmann lyarwood: we should be good to do for nova now, grenade jobs as n-v
15:12:30 lyarwood gmann: ack yeah thanks, we are seeing an issue with g-api on the subnodes being unable to run as uwsgi is installed under a different path on 16.04
15:12:46 lyarwood just working through it now
15:16:26 gmann lyarwood: yeah, we actually do not run uwsgi on subnode as no api service is supposed to run there - https://review.opendev.org/#/c/738780/

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