Hi, I have created a flavor with following properties and created an instance. Instance failed with the error "No valid host was found. There are not enough hosts available." When I set the cpu policy as 'shared' I can create the instance. The host machine has two numa nodes and a total of 128 vcpu. I can not figure out what's missing here. controller-1:~$ openstack flavor show dn.large -c properties +------------+--------------------------------------------------------------------------------------------------------+ | Field | Value | +------------+--------------------------------------------------------------------------------------------------------+ | properties | hw:cpu_cores='2', hw:cpu_policy='dedicated', hw:cpu_sockets='1', hw:cpu_threads='2', hw:numa_nodes='1' | +------------+--------------------------------------------------------------------------------------------------------+ controller-1:~$ openstack hypervisor stats show +----------------------+--------+ | Field | Value | +----------------------+--------+ | count | 1 | | current_workload | 0 | | disk_available_least | 187 | | free_disk_gb | 199 | | free_ram_mb | 308787 | | local_gb | 219 | | local_gb_used | 20 | | memory_mb | 515443 | | memory_mb_used | 206656 | | running_vms | 7 | | vcpus | 126 | | vcpus_used | 49 | +----------------------+--------+ Regards, Danishka