Public bug reported: When testing on Victoria virtual GPUs, I wanted to have different types :
[devices] enabled_vgpu_types = nvidia-320,nvidia-321 [vgpu_nvidia-320] device_addresses = 0000:04:02.1,0000:04:02.2 [vgpu_nvidia-321] device_addresses = 0000:04:02.3 Unfortunately, I saw that only the first type was used. When restarting the nova-compute service, we got the log : WARNING nova.virt.libvirt.driver [None req-a23d9cb4-6554-499c-9fcf-d7f9706535ef None None] The vGPU type 'nvidia-320' was listed in '[devices] enabled_vgpu_types' but no corresponding '[vgpu_nvidia-320]' group or '[vgpu_nvidia-320] device_addresses' option was defined. Only the first type 'nvidia-320' will be used. It's due to the fact that we call _get_supported_vgpu_types() first when creating the libvirt implementation [1] while we only register the new CONF options by init_host() [2] which is called after. [1] https://github.com/openstack/nova/blob/90777d790d7c268f50851ac3e5b4e02617f5ae1c/nova/virt/libvirt/driver.py#L418 [2] https://github.com/openstack/nova/blob/90777d7/nova/compute/manager.py#L1405 A simple fix would just be to make sure we have dynamic options within _get_supported_vgpu_types() ** Affects: nova Importance: Medium Assignee: Sylvain Bauza (sylvain-bauza) Status: Confirmed ** Tags: libvirt vgpu -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1900006 Title: Asking for different vGPU types is racey Status in OpenStack Compute (nova): Confirmed Bug description: When testing on Victoria virtual GPUs, I wanted to have different types : [devices] enabled_vgpu_types = nvidia-320,nvidia-321 [vgpu_nvidia-320] device_addresses = 0000:04:02.1,0000:04:02.2 [vgpu_nvidia-321] device_addresses = 0000:04:02.3 Unfortunately, I saw that only the first type was used. When restarting the nova-compute service, we got the log : WARNING nova.virt.libvirt.driver [None req-a23d9cb4-6554-499c-9fcf-d7f9706535ef None None] The vGPU type 'nvidia-320' was listed in '[devices] enabled_vgpu_types' but no corresponding '[vgpu_nvidia-320]' group or '[vgpu_nvidia-320] device_addresses' option was defined. Only the first type 'nvidia-320' will be used. It's due to the fact that we call _get_supported_vgpu_types() first when creating the libvirt implementation [1] while we only register the new CONF options by init_host() [2] which is called after. [1] https://github.com/openstack/nova/blob/90777d790d7c268f50851ac3e5b4e02617f5ae1c/nova/virt/libvirt/driver.py#L418 [2] https://github.com/openstack/nova/blob/90777d7/nova/compute/manager.py#L1405 A simple fix would just be to make sure we have dynamic options within _get_supported_vgpu_types() To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1900006/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
