Wednesday, 2021-05-05

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openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: Replace blind retry with libvirt event waiting in detach  https://review.opendev.org/c/openstack/nova/+/78872007:58
openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: Move the guest.get_disk test to test_guest  https://review.opendev.org/c/openstack/nova/+/78872107:59
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openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: Enable mypy on libvirt/guest.py  https://review.opendev.org/c/openstack/nova/+/78872208:00
openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: Follow up type hints for a634103  https://review.opendev.org/c/openstack/nova/+/78872308:00
gibilyarwood: I redid the backport of https://review.opendev.org/q/topic:bug/1882521+status:open now it is a clean cherry pick.08:02
gibielod: fyi ^^08:02
openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: libvirt: Remove dead error handling code  https://review.opendev.org/c/openstack/nova/+/78872408:03
openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: Move instance power state check to _detach_with_retry  https://review.opendev.org/c/openstack/nova/+/78872508:03
openstackgerritBalazs Gibizer proposed openstack/nova stable/wallaby: Consolidate device detach error handling  https://review.opendev.org/c/openstack/nova/+/78872608:05
openstackgerritBrin Zhang proposed openstack/nova master: Replace os-simple-tenant-usage with os-simple-project-usage  https://review.opendev.org/c/openstack/nova/+/76885208:10
openstackgerritBrin Zhang proposed openstack/nova master: Replace tenant_id with project_id in os-quota-sets path  https://review.opendev.org/c/openstack/nova/+/76885108:10
openstackgerritBrin Zhang proposed openstack/nova master: Replace tenant_id with project_id in Limits API  https://review.opendev.org/c/openstack/nova/+/76886208:11
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openstackgerritBrin Zhang proposed openstack/nova master: Replace tenant* with project* in codes  https://review.opendev.org/c/openstack/nova/+/76932908:12
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* bauzas wraps his head about how to fix https://bugs.launchpad.net/nova/+bug/190080008:30
openstackLaunchpad bug 1900800 in OpenStack Compute (nova) "VGPUs is not recreated on host reboot" [Low,Confirmed] - Assigned to Sylvain Bauza (sylvain-bauza)08:30
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alexe919182Good day everyone:)  I was wondering if a way to have nova start a vm backed by rbd? But only the the --image used not for the disk in the flavor? Is it possible to have the disk on the flavor still on local disk side?08:51
openstackgerritXinxin Shen proposed openstack/os-vif master: setup.cfg: Replace dashes with underscores  https://review.opendev.org/c/openstack/os-vif/+/78973408:51
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bauzassean-k-mooney: when you're around, if you have a moment, I'm blocked with https://bugs.launchpad.net/nova/+bug/190080009:31
openstackLaunchpad bug 1900800 in OpenStack Compute (nova) "VGPUs is not recreated on host reboot" [Low,Confirmed] - Assigned to Sylvain Bauza (sylvain-bauza)09:31
bauzasand I need a second pair of eyes09:31
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sean-k-mooneysure just looking now10:12
sean-k-mooneyoh that10:12
sean-k-mooneybauzas: how can i help10:13
bauzassean-k-mooney: lemme explain10:13
bauzassean-k-mooney: we need to call placement for getting the RP10:13
bauzasbut, there are two issues10:13
bauzasfirst, the method looking at the mdevs is called by the libvirt init_host()10:14
bauzaswhich is called *before* the RT update_avalaible_resource()10:14
sean-k-mooneyright so you can just use the instance uuid to call https://docs.openstack.org/api-ref/placement/?expanded=list-allocations-detail#list-allocations10:15
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sean-k-mooneythat will give you all the allocations by RP10:15
sean-k-mooneyfor a given consomeer i.e. vm10:15
bauzassean-k-mooney: so, in case of a vGPU reshape, the allocation will tell that the RP is the root one10:15
bauzas(as the reshape is done *after*)10:16
bauzaswe could tell it's OK10:16
bauzasbut then we have a second concern10:16
bauzaswe don't accept the libvirt driver to call directly Placement API10:16
bauzasinstead, we directly pass allocations to the methods10:17
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bauzaswe could use the provider tree that we have in the driver10:17
sean-k-mooneyright so either we have to allow the driver to do that or we need to modify init_host to accpet a dict of allocations keyed by instance uuid10:17
bauzasbut, this variable is not yet created by init_host()10:18
bauzassean-k-mooney: I'm not sure we could accept this10:18
bauzas(allowing the driver to directly call placement)10:18
bauzaswhat we could do is maybe the latter10:19
sean-k-mooneyim just pulling up the code in the compute manager now10:19
sean-k-mooneyhttps://github.com/openstack/nova/blob/master/nova/compute/manager.py#L1441-L144310:20
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sean-k-mooneyso this is where we end up callint ingo the dirver eventurally right10:20
sean-k-mooneyfrom _init_instanc10:20
sean-k-mooneyfor example thsi is where we plug vifs https://github.com/openstack/nova/blob/7953c0197d1a4466cb5b78070d47626c92f9db6e/nova/compute/manager.py#L113710:21
bauzasnot really10:21
bauzasrather here https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L141310:21
sean-k-mooneyright but we do not create the instance until https://github.com/openstack/nova/blob/7953c0197d1a4466cb5b78070d47626c92f9db6e/nova/compute/manager.py#L120410:21
bauzashmmm, I see10:22
sean-k-mooneysorry a few lines above https://github.com/openstack/nova/blob/7953c0197d1a4466cb5b78070d47626c92f9db6e/nova/compute/manager.py#L119510:22
sean-k-mooneyso what im thinking is we can extend this function to create the mdevs10:22
sean-k-mooneythis happesn after the driver init_host is run10:23
sean-k-mooneyso the reshapes would already have run10:23
bauzasinstead of having init_host() calling https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L78910:23
bauzaswe would use init_instance()10:23
sean-k-mooneyyep10:23
bauzasthis could work10:23
* bauzas needs to look at what we have in init_instance()10:24
bauzasbut then, we could ask its allocations10:24
bauzasas it's within the compute manager10:24
sean-k-mooneyit basicaly just plugs vifs and cleans up deleted instance ectra10:24
sean-k-mooneyyep10:24
sean-k-mooneyits in the compute manager so we can have it get the allocations10:24
bauzasand then, pass the allocation to the virt driver which would use the related RP name for knowing which type10:24
sean-k-mooneywe might need to extend the dirver interface and add an optional funciton10:25
sean-k-mooneywhich we woudl call that take the instnace and allcoations10:25
bauzasyup, I see it10:25
bauzassean-k-mooney: thanks10:25
sean-k-mooneythe libvirt implemation of that could prepare_resouces_for_instance(uuid, allocation)10:25
bauzasyup, better than recreate_mdev() which is too specific10:26
sean-k-mooneyyep not sure if we will use it for anything else but it at least allows us to if we need too in the future10:26
bauzasOK, I see it, lemme work on it10:26
bauzasthanks10:26
* bauzas goes to lunch but then will implement this10:29
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nightmare_unrealhow to change hypervisor state ( not status). It's down . I want it up .10:43
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sean-k-mooneyit will be down for 2 reasons10:47
sean-k-mooneyeither it missed its heartbeat in which case you need to start it or you forced it down10:48
sean-k-mooneyin which case you can force it up10:48
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nightmare_unrealopenstack compute service set <compute-node> nova-compute --up --os-compute-api-version 2.1110:49
nightmare_unrealtrying with this10:49
nightmare_unrealI didn't changed the state in past. It was only status ( enable and disable)10:50
nightmare_unrealfor some reason it went down10:50
sean-k-mooneythen its the heartbeat10:50
sean-k-mooneyin which case its not able to talk to the conductor over the rpc bus10:50
sean-k-mooneyso you need to check why10:50
sean-k-mooneyor you can turn it off and on again by restarting the compuate agent10:51
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nightmare_unrealI see, thanks for the suggestion . I will first try with restart I think10:51
sean-k-mooneythe compute node being down is a signal to the operator that the node is cannot be managed and you need to investigate10:51
nightmare_unrealthere are no VMs on that compute node10:52
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openstackgerritCedric Jeanneret proposed openstack/nova stable/train: [Train-Only] Update setup.cfg with new names  https://review.opendev.org/c/openstack/nova/+/78982212:33
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openstackgerritBalazs Gibizer proposed openstack/nova master: Adapt to SQLAlchemy 1.4  https://review.opendev.org/c/openstack/nova/+/78847116:01
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openstackgerritBalazs Gibizer proposed openstack/nova master: DNM: test nova with SQLAlchemy 1.4  https://review.opendev.org/c/openstack/nova/+/78991616:03
openstackgerritBalazs Gibizer proposed openstack/placement master: Adapt to SQLAlchemy 1.4  https://review.opendev.org/c/openstack/placement/+/78992116:08
openstackgerritBalazs Gibizer proposed openstack/placement master: DNM: test with SQLAlchemy 1.4  https://review.opendev.org/c/openstack/placement/+/78992216:09
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