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#openstack-nova - 2021-01-26
09:15:19 lyarwood \o morning
09:18:29 openstackgerrit Lee Yarwood proposed openstack/nova stable/victoria: api: Log os-resetState as an instance action https://review.opendev.org/c/openstack/nova/+/772480
09:19:04 openstackgerrit Lee Yarwood proposed openstack/nova stable/ussuri: api: Log os-resetState as an instance action https://review.opendev.org/c/openstack/nova/+/772481
09:19:23 openstackgerrit Lee Yarwood proposed openstack/nova stable/train: api: Log os-resetState as an instance action https://review.opendev.org/c/openstack/nova/+/772482
09:30:56 lyarwood elod / melwitt / bauzas ; https://review.opendev.org/c/openstack/nova/+/758730 would you mind taking a look at this (and the cherry picks) this week?
09:36:15 alexe9191 Good day everyone, I was wondering if someone could help me with a question related to novaclient?
09:36:31 alexe9191 In order to reach the API endpoint I need to set a specific header
09:36:50 alexe9191 I can do this if I am writing my own python code, but I'd like to use the OpenStack cli.
09:37:31 alexe9191 There is sadly no -H option in the OpenStack cli. I was wondering where can I set curl options in the code of novaclient so that I can enforce passing the header?
09:42:47 swp20 moring gibi, please review noVNC https://review.opendev.org/c/openstack/nova/+/622336/28 ,thanks.
09:50:15 bauzas lyarwood: sorry was in a meeting
09:50:30 bauzas but sure, I can take a look
10:18:32 sapd1 Hello everyone, I would like to use vGPU feature with Nova and KVM(QEMU). Which model should I choose? As I know If we use this feature, we need to pay license for it (NVDIA for example). Is it true?
10:19:21 lyarwood alexe9191: use openstacksdk, it should handle everything for you
10:20:04 bauzas sapd1: correct, you need a license if you want to use nvidia GPUs
10:20:31 bauzas for the models, sec.
10:20:34 sapd1 bauzas, Thanks, There is no other options for it?
10:22:13 bauzas sapd1: for the models : https://docs.nvidia.com/grid/latest/grid-vgpu-user-guide/index.html#supported-gpus-grid-vgpu
10:22:28 alexe9191 @lyar
10:23:50 bauzas sapd1: some folks use nvidia T4s for testing
10:23:53 alexe9191 @lyarwood: Thank you, I was looking for a way to hack the code locally so that I can use the openstack command line tools. But that does not seem to be the smartest course of action here.
10:23:58 elod lyarwood: the patch looks ok to me!
10:24:04 elod +2'd
10:26:21 sapd1 bauzas, Thanks, I will check it.
10:27:03 bauzas sapd1: fwiw, Intel gvt-g cards also work :p
10:27:24 MrClayPole admin0: "virsh list" shows no instances. I can boot the VM, run "dumpxml instance-" it shows http://paste.openstack.org/raw/801977/ and as it boots the 2 shared storage disks so they should be OK? The migration fails with "Error: Failed to perform requested operation on instance "", the instance has an error status: Please try again later [Error: The server has either erred or is incapable of performing the
10:27:24 MrClayPole requested operation. (HTTP 500) (Request-ID: )". The nova logs show http://paste.openstack.org/raw/801979/. Should I just give up at this point and recreate the VM?
10:27:31 bauzas sapd1: but.... what I can say ? :)
10:27:39 sapd1 bauzas, could you give some recommendations? Is it required license ?
10:28:03 bauzas sapd1: which usecase would you like to do for vGPUs ?
10:28:05 admin0 virsh list --all
10:28:13 admin0 to also show stopped instances
10:29:45 bauzas sapd1: if you want to see my face... https://www.youtube.com/watch?v=sQCgyo2BRe4
10:30:29 bauzas and for the cards, well... as I said, that depends on which kind of use case you'd like to have
10:30:38 bauzas t4s are cheap
10:31:10 sapd1 bauzas, some workloads such as ML, video transcode..
10:31:27 MrClayPole Well don't I feel stupid, Thanks for pointing out the --all. This is the output when powered off http://paste.openstack.org/raw/801982/ I've taken a look and can't see anything that would block the migration
10:31:37 bauzas sapd1: then, test with a T4
10:33:02 sapd1 bauzas, haha. Is it required license for testing ?
10:33:18 bauzas again, there are nvidia docs for this :p
10:33:40 lyarwood MrClayPole: look for req-3fc432cf-4d5c-4d9b-b16e-d06d912e93e7 in your cinder-api / cinder-volume logs
10:34:30 lyarwood MrClayPole: and yeah if all of your data is in these volumes it might be easier to recreate the instance
10:34:33 bauzas sapd1: https://docs.nvidia.com/grid/latest/grid-licensing-user-guide/index.html#license-editions-nvidia-grid
10:34:47 lyarwood MrClayPole: I'm assuming this is the first attempt to cold migrate that failed?
10:34:54 lyarwood MrClayPole: resize sorry
10:35:47 bauzas sapd1: and https://docs.nvidia.com/grid/latest/grid-vgpu-user-guide/index.html#virtual-gpu-types-grid
10:36:12 bauzas and for a T4 https://docs.nvidia.com/grid/latest/grid-vgpu-user-guide/index.html#vgpu-types-tesla-t4
10:36:47 MrClayPole lyarwood: Yeah, running a cold migration. I'm temped to see this one through rather than go for the recreate as this'll be a good chance for me to start learning the internals of openstack.
10:37:33 bauzas sapd1: if it's just transcoding, a vApps license with a T4-1A vGPU type seems reasonable to me
10:38:00 lyarwood MrClayPole: cool well if you can trace that request-id in the cinder logs and pastebin them I can take a look and walk you through this
10:38:01 bauzas for ML, well, good luck, that highly depends on your training needs
10:39:08 lyarwood elod: do you know if anyone has capped get-pip.py given py27 support has now been dropped? Borked stable/queens AFAICT at least.
10:40:01 bauzas sapd1: but you can run for a short period of time a server without a licensed vGPU https://docs.nvidia.com/grid/latest/grid-licensing-user-guide/index.html#software-enforcement-grid-licensing
10:45:01 sapd1 bauzas, nice. I will request for buying it and try later. :D
10:45:22 bauzas sapd1: ask maybe first a nvidia rep
10:45:32 bauzas I'm not a sales person :)
10:45:47 bauzas and see which kind of license matches your need
10:46:18 sapd1 bauzas, yep. I need time to research on it. If I have any issues, I will ping you. thanks :D
10:46:21 frickler lyarwood: elod: there's some patches up for devstack about get-pip
10:46:48 frickler most of them pushed by elod in fact ;)
10:47:24 bauzas sapd1: again, neither working for nvidia, nor a sales person, but if I can help...
10:47:35 sapd1 bauzas, yeah :D
10:48:17 lyarwood frickler: I had a feeling :D
10:48:44 lyarwood elod++
10:48:57 elod lyarwood: frickler: yes, I noticed that amotoki had a fix for that and backported it till pike :]
10:50:09 lyarwood do we need a bug? I just wrote https://bugs.launchpad.net/devstack/+bug/1913283 before finding this
10:50:11 openstack Launchpad bug 1913283 in devstack "get-pip.py no longer supports py27" [Undecided,New]
10:50:12 elod it will need merging in reverse order for some patches (where there's grenade)
10:51:12 elod these are the patches btw: https://review.opendev.org/q/topic:%22get-pip-py27%22
10:53:30 lyarwood seems a little over the top, can't we just set PIP_GET_PIP_URL on the py27 jobs?
10:59:51 frickler lyarwood: then people will complain that their local stuff fails. I personally am all for dropping py2 support completely, but it doesn't seem to be possible to get consensus on that yet
11:00:28 lyarwood frickler: ah fair
11:33:26 gibi stephenfin: hi! if you need me to look at the placement test isolation issue then could you summarize what is the problem? is there a simple reproduction of the problem I can do locally to start with?
11:40:44 khomesh24 #openstack-nova Hello, can someone check the bug https://bugs.launchpad.net/nova/+bug/1913016?
11:40:45 openstack Launchpad bug 1913016 in OpenStack Compute (nova) "nova api os-resetState should not reset the state when VM is shelved_offloaded" [Undecided,New] - Assigned to Khomesh Thakre (khomesh24)
11:42:28 sean-k-mooney gibi: i think the issue is each of the gabby test files are written such that they need to be run indepently
11:42:47 lyarwood khomesh24: that looks valid to me, did you have a patch?
11:43:53 sean-k-mooney for example https://github.com/openstack/placement/blob/master/placement/tests/functional/gabbits/shared-resources.yaml
11:44:08 sean-k-mooney needs to be run with its own placment instance
11:46:18 sean-k-mooney although that is proably not the best example since it wont conflict with others since other dont create inventoies of CUSTOM_MAGIC
11:47:27 stephenfin gibi: I just figured it out
11:47:31 stephenfin https://storyboard.openstack.org/#!/story/2008556
11:48:01 stephenfin pushing a fix shortly
11:50:27 gibi sean-k-mooney, stephenfin: thanks, then I will not dig into it
11:51:26 sean-k-mooney stephenfin: i assume that is because we are using a global object at some point and not mockign it propertly in the tests
11:52:26 stephenfin yes, the RuleDefault objects provided in placement.policies.*
11:59:24 gibi sean-k-mooney: replied in https://review.opendev.org/c/openstack/nova/+/757109 I think you missed the @retries decorator
12:00:00 khomesh24 lyarwood, no i wanted to valid first
12:07:08 lyarwood khomesh24: kk for me it's valid, I've marked the bug as confirmed
12:07:22 lyarwood khomesh24: it doesn't make sense to allow an admin to reset to active if the instance is offloaded
12:08:56 khomesh24 lyarwood, ack, i will start working on the patch then, thank you
12:12:21 gibi lyarwood, khomesh24: do we then make os-resetState smart for other non valid reality-db state combinations too?
12:13:14 gibi for me os-resetState is a blunt instrument, and the implementation also suggest that (it validates nothing)
12:13:40 lyarwood gibi: I wouldn't be opposed to it tbh, anything we can do to avoid obvious PEBKAC is good with me
12:14:19 gibi lyarwood: so when the admin reset to ACTIVE then we should call down to the compute to validate that the instance is really running happily?
12:14:54 lyarwood gibi: no I'd just sanity check the vm_state
12:15:07 lyarwood gibi: SHELVED_OFFLOADED to ACTIVE obviously isn't valid
12:16:20 lyarwood gibi: https://docs.openstack.org/api-ref/compute/?expanded=reset-server-state-os-resetstate-action-detail#reset-server-state-os-resetstate-action the docs are also wrong, you can set any valid vm_state AFAICT
12:16:21 gibi lyarwood: is it not valid as ACTIVE would need instance.host set but we assume that in SHELVED_OFFLOADED the instance.host is None?
12:16:46 lyarwood gibi: correct, any further action would just fail

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