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#openstack-nova - 2023-09-14
07:44:11 sahid basically for a given tenant allowed for az3 the return used by the scheduler will be [az1, az2, az3], and for the other tenants only [az1, az2]
07:46:05 sahid bauzas: o/ you may have some idea ^
07:46:57 sahid i'm thinking about to fix a bit multitenantisolation to acheive that
08:24:45 opendevreview Merged openstack/nova master: Add service version for Bobcat https://review.opendev.org/c/openstack/nova/+/893749
08:27:20 bauzas sahid: looking (I was afk)
08:28:22 bauzas so you would like to return different AZs based on the tenant ?
08:28:55 bauzas if so, yeah, it's https://github.com/openstack/nova/blob/master/nova/scheduler/request_filter.py#L95
08:37:08 sahid hum...
09:09:19 sahid that does not really work, we will have to duplicate our aggregates and set filter_tenant_id to all the duplicate ones
09:11:01 sahid I guess in that way, for a given tenant it will be possible to schedule on as1, az2, az3 using filter_tenant_id and the other will continue on az1 and az2
09:49:40 zigo stephenfin: FYI, I also found that freezer-api probably needs some sqlalchemy 2.x love too...
09:49:49 zigo TypeError: LegacyEngineFacade.from_config() got an unexpected keyword argument 'autocommit'
09:49:50 zigo ...
09:50:17 zigo failures=511
09:50:38 zigo Is it possible that just removing the autocommit argument is enough?
09:52:23 sean-k-mooney is freezer still supported
09:52:29 zigo Wooops... s/freezer/watcher/
09:52:44 zigo My bad.
09:53:05 sean-k-mooney i have almost the same qustion for watcher :P although i had seen that mention at least this side of the pandemic
09:53:28 zigo To the contrary of freezer, there was some commits for this cycle.
09:54:30 sean-k-mooney there was like 8 commit in watcher most procedural
09:54:43 sean-k-mooney but i guess its stil offically supported
09:56:06 sean-k-mooney tobias-urdin: you were making some changes to watcher eiarler in the year. is that a project you have use of personaly
09:56:50 sean-k-mooney just wondering if patches were created how likely is it that they would be merged/reviewd
11:31:14 opendevreview Amit Uniyal proposed openstack/nova master: WIP:Adds device tagging functional tests https://review.opendev.org/c/openstack/nova/+/895162
11:51:09 tobias-urdin sean-k-mooney: we do not use it, nothing i actively work on, i just did some drive-by fixes for oslo.messaging or fixing ci probably
11:57:50 sean-k-mooney tobias-urdin: ack ya that is what i was assumign i was just wondering if there were any active contibutors left
12:24:30 bauzas ralonsoh: while https://review.opendev.org/c/openstack/neutron/+/893447 is now merged (the neutron revert), we still have CI failures today https://zuul.opendev.org/t/openstack/build/01dd3befff5e42cfb0c0f667b8e7e30b
12:28:54 bauzas elodilles: I guess you know the current situation in Nova
12:29:06 bauzas we still need to await a few merges before RC1
12:30:53 bauzas hmpfff https://zuul.opendev.org/t/openstack/builds?job_name=nova-live-migration&skip=0
12:31:05 bauzas 30% of failures I'd say
12:44:09 mgariepy is it possible to force nova a device_type for pci devices ?
12:44:55 sean-k-mooney no
12:45:51 mgariepy i wiant to only do some pci passthrough on a couple of A100
12:46:14 sean-k-mooney you can filter by the pci adress
12:46:39 sean-k-mooney with support for regxes or bash globs if you dont want to just use the adress
12:46:51 mgariepy https://github.com/openstack/nova/blob/stable/2023.1/nova/pci/stats.py#L682C1-L683C1
12:47:52 sean-k-mooney yes if the alais is not device_type pf then we filter them out when considering candiates
12:48:10 sean-k-mooney that does not mean you cant reqeust PF for passthrough
12:48:35 sean-k-mooney you jsut have to set the device_type to type-PF in the pci ailais
12:49:22 sean-k-mooney so inestead of type-pci or type-vf https://github.com/openstack/nova/blob/stable/2023.1/nova/pci/request.py#L34 you woudl set type-PF
12:50:50 sean-k-mooney the alias and device list work toghtere to selec tthe device. the alias is how you describe the request and the device_list (pci whitelist) is how you declar what device may be allocated
12:51:36 mgariepy alias = { "name": "nvidia-a100-smx4-40gb", "product_id": "20b0", "vendor_id": "10de", 'device_type': 'type-PF'}
12:51:46 mgariepy restart the scheduler, and still get the same error.
12:52:25 sean-k-mooney you need to set this on all the compute too just an fyi hte have to match
12:52:40 sean-k-mooney but what is the error
12:53:10 mgariepy on it's also set on the gpu compute.
12:53:49 sean-k-mooney have you checked the pci devices tabel to ensure the a100s are correctly tracked
12:54:51 sean-k-mooney wether they show up as type-PF or type-pci will depend on if they report supprot for creating VF
12:55:05 sean-k-mooney that may depend on if you have enbale mig mode of not
12:55:27 sean-k-mooney for t4 it depeneded on the firmware version
12:55:48 sean-k-mooney i think a100 woudl alays report sriov supprot but its worth checking
12:56:12 mgariepy Placement PCI resource view: Placement PCI view on gpu-hpc21145: RP(gpu-hpc21145_0000:01:00.0, CUSTOM_PCI_10DE_20B0=1, traits=COMPUTE_MANAGED_PCI_DEVICE)
12:56:38 sean-k-mooney oh your using the pci in placemnt feature
12:57:01 mgariepy yep all i tried was also failing :) haha
12:57:08 mgariepy on 2023.1
12:57:19 sean-k-mooney well this should be fine
12:57:32 sean-k-mooney so is it passign placment and failing in the pci filter?
12:57:40 sean-k-mooney or is it failing to get results form placemnt
12:59:23 elodilles bauzas: ACK. you can -1 the patch until it'll be updated: https://review.opendev.org/c/openstack/releases/+/894693
12:59:52 bauzas oh missed it from my mails
13:00:01 mgariepy fails at running : _filter_pools_for_unrequested_pfs()
13:00:04 bauzas I was wondering why I wasn't seen it
13:00:44 mgariepy dev_type vs device_type ?
13:00:52 mgariepy or it's abstracted somewhere ?
13:01:18 sean-k-mooney its device_type in the alias
13:01:44 ralonsoh bauzas, yes, I'm going to mark this test as unstable again
13:01:50 sean-k-mooney https://github.com/openstack/nova/blob/stable/2023.1/nova/pci/request.py#L95C10-L104 that is the jsonschma fo rthe validation
13:02:00 ralonsoh we need to find a better way to set the subport as active after the live migration
13:02:01 sean-k-mooney but i think its dev type in the object
13:02:27 mgariepy let me logs the request and pool. to see if something seems odds.
13:02:38 sean-k-mooney https://github.com/openstack/nova/blob/stable/2023.1/nova/pci/request.py#L143C13-L145
13:02:51 bauzas ralonsoh: ack
13:02:58 sean-k-mooney mgariepy: i would check the pci_devices table in teh cell db
13:03:13 sean-k-mooney and make sure the device has the expected type ectra
13:04:19 mgariepy nova.pci_devices tells me that the device is type-PF
13:05:02 ralonsoh bauzas, https://review.opendev.org/c/openstack/tempest/+/895167
13:09:59 sean-k-mooney mgariepy: what does the pci whitelist look like for that host
13:11:09 sean-k-mooney based on the alias above it looks co unless you added physnet or remote managed or something im not sure why it would be remvoed
13:11:50 sean-k-mooney its the pci filter not the numa filter that is removing it right?
13:11:52 mgariepy https://paste.openstack.org/show/bij0SgRpSEVCTILyzIzf/
13:12:10 mgariepy seems to be the pci filter
13:13:02 sean-k-mooney hum that all looks correct to me
13:14:15 mgariepy https://paste.openstack.org/show/bP2oY2IOe4lNvj6wGB8w/
13:14:51 mgariepy what is resolving the alias ? is it dont by the scheduler directly ?
13:15:27 sean-k-mooney that depends on the request
13:15:47 mgariepy my flavor has alias stuff in in.
13:15:49 sean-k-mooney but no i think its doen in the compute or the api
13:16:53 sean-k-mooney https://docs.openstack.org/nova/latest/admin/pci-passthrough.html#configure-nova-api
13:17:07 sean-k-mooney so for ne vm request this is usd by the nova-api not the scheduler
13:17:30 sean-k-mooney and for rezize its used form teh compute
13:17:45 sean-k-mooney so if you are udataing this you need to restart the nova-api not the scheduler
13:18:26 sean-k-mooney the scheudle reciveds a fully popultated RequestSepc object which has the pci resuets embeeded in it
13:19:38 mgariepy but me resquest doesn't receive the device_type :/
13:23:12 sean-k-mooney did you restart the nova-api processes after updating hte alias
13:24:02 mgariepy i did restart the nova slice. let me try juste putting the same config accross all the cluster to see if it changes something.
13:32:19 mgariepy what driver shoud be loaded fo the pci dev ?
13:32:56 mgariepy pci-stub or vfio-pci ?
13:32:58 sean-k-mooney the driver should not matter to the schduler

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