控制节点 /etc/nova/nova.conf

[DEFAULT]
cpu_allocation_ratio=32.0
service_down_time = 7200
#use_local = True
#scheduler_default_filters=AvailabilityZoneFilter,RamFilter,ComputeFilter,ComputeCapabilitiesFilter,ImageProp
#scheduler_default_filters=AllHostsFilter
scheduler_default_filters=AllHostsFilter