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On 7/23/2019 9:50 AM, Massimo Sgaravatto wrote:
> 
> This [*] is what appears in nova-scheduler after having enabled the debug.
> 
> We performed a "yum update" so, yes, we also updated libvirt (now we are 
> running v. 4.5.0)
> 
> Thanks, Massimo
> 
> [*]
> 
> 2019-07-23 16:44:34.849 12561 DEBUG 
> nova.scheduler.filters.image_props_filter 
> [req-52638278-51b7-4768-836a-f70d8a8b016a 
> ab573ba3ea014b778193b6922ffffe6d ee1865a76440481cbcff08544c7d580a - 
> default default] Instance contains properties 
> ImageMetaProps(hw_architecture=<?>,hw_auto_disk_config=<?>,hw_boot_menu=<?>,hw_cdrom_bus=<?>,hw_cpu_cores=<?>,hw_cpu_max_cores=<?>,hw_cpu_max_sockets=<?>,hw_cpu_max_threads=<?>,hw_cpu_policy=<?>,hw_cpu_realtime_mask=<?>,hw_cpu_sockets=<?>,hw_cpu_thread_policy=<?>,hw_cpu_threads=<?>,hw_device_id=<?>,hw_disk_bus=<?>,hw_disk_type=<?>,hw_firmware_type=<?>,hw_floppy_bus=<?>,hw_ipxe_boot=<?>,hw_machine_type=<?>,hw_mem_page_size=<?>,hw_numa_cpus=<?>,hw_numa_mem=<?>,hw_numa_nodes=<?>,hw_pointer_model=<?>,hw_qemu_guest_agent=<?>,hw_rescue_bus=<?>,hw_rescue_device=<?>,hw_rng_model=<?>,hw_scsi_model=<?>,hw_serial_port_count=<?>,hw_video_model=<?>,hw_video_ram=<?>,hw_vif_model=<?>,hw_vif_multiqueue_enabled=<?>,hw_vm_mode=<?>,hw_watchdog_action=<?>,img_bdm_v2=<?>,img_bittorrent=<?>,img_block_device_mapping=<?>,img_cache_in_nova=<?>,img_compression_level=<?>,img_config_drive=<?>,img_hide_hypervisor_id=<?>,img_hv_requested_version=<?>,img_hv_type='qemu',img_linked_clone=<?>,img_mappings=<?>,img_owner_id=<?>,img_root_device_name=<?>,img_signature=<?>,img_signature_certificate_uuid=<?>,img_signature_hash_method=<?>,img_signature_key_type=<?>,img_use_agent=<?>,img_version=<?>,os_admin_user=<?>,os_command_line=<?>,os_distro=<?>,os_require_quiesce=<?>,os_secure_boot=<?>,os_skip_agent_inject_files_at_boot=<?>,os_skip_agent_inject_ssh=<?>,os_type=<?>,traits_required=<?>) 
> that are not provided by the compute node supported_instances [[u'i686', 
> u'kvm', u'hvm'], [u'x86_64', u'kvm', u'hvm']] or hypervisor version 
> 2012000 do not match _instance_supported 
> /usr/lib/python2.7/site-packages/nova/scheduler/filters/image_props_filter.py:103
> 2019-07-23 16:44:34.852 12561 DEBUG 
> nova.scheduler.filters.image_props_filter 
> [req-52638278-51b7-4768-836a-f70d8a8b016a 
> ab573ba3ea014b778193b6922ffffe6d ee1865a76440481cbcff08544c7d580a - 
> default default] Instance contains properties 
> ImageMetaProps(hw_architecture=<?>,hw_auto_disk_config=<?>,hw_boot_menu=<?>,hw_cdrom_bus=<?>,hw_cpu_cores=<?>,hw_cpu_max_cores=<?>,hw_cpu_max_sockets=<?>,hw_cpu_max_threads=<?>,hw_cpu_policy=<?>,hw_cpu_realtime_mask=<?>,hw_cpu_sockets=<?>,hw_cpu_thread_policy=<?>,hw_cpu_threads=<?>,hw_device_id=<?>,hw_disk_bus=<?>,hw_disk_type=<?>,hw_firmware_type=<?>,hw_floppy_bus=<?>,hw_ipxe_boot=<?>,hw_machine_type=<?>,hw_mem_page_size=<?>,hw_numa_cpus=<?>,hw_numa_mem=<?>,hw_numa_nodes=<?>,hw_pointer_model=<?>,hw_qemu_guest_agent=<?>,hw_rescue_bus=<?>,hw_rescue_device=<?>,hw_rng_model=<?>,hw_scsi_model=<?>,hw_serial_port_count=<?>,hw_video_model=<?>,hw_video_ram=<?>,hw_vif_model=<?>,hw_vif_multiqueue_enabled=<?>,hw_vm_mode=<?>,hw_watchdog_action=<?>,img_bdm_v2=<?>,img_bittorrent=<?>,img_block_device_mapping=<?>,img_cache_in_nova=<?>,img_compression_level=<?>,img_config_drive=<?>,img_hide_hypervisor_id=<?>,img_hv_requested_version=<?>,img_hv_type='qemu',img_linked_clone=<?>,img_mappings=<?>,img_owner_id=<?>,img_root_device_name=<?>,img_signature=<?>,img_signature_certificate_uuid=<?>,img_signature_hash_method=<?>,img_signature_key_type=<?>,img_use_agent=<?>,img_version=<?>,os_admin_user=<?>,os_command_line=<?>,os_distro=<?>,os_require_quiesce=<?>,os_secure_boot=<?>,os_skip_agent_inject_files_at_boot=<?>,os_skip_agent_inject_ssh=<?>,os_type=<?>,traits_required=<?>) 
> that are not provided by the compute node supported_instances [[u'i686', 
> u'kvm', u'hvm'], [u'x86_64', u'kvm', u'hvm']] or hypervisor version 
> 2012000 do not match _instance_supported 
> /usr/lib/python2.7/site-packages/nova/scheduler/filters/image_props_filter.py:103

Yeah at this point I'm not sure what's going on but the driver is 
reporting kvm now and your image is requesting qemu so that's why the 
hosts are getting filtered out. I'm not sure why the upgrade of 
libvirt/qemu would change what the driver is reporting now, but it's a 
bit lower level than I'd know about off hand. Maybe some of the Red Hat 
nova devs would know more about this or have seen it before.

-- 

Thanks,

Matt