OpenStack M版本创建虚拟机异常

1.OpenStack M版本中创建虚拟机提示错误，页面显示创建过程中获取三个IP地址后创建失败。

Exceeded maximum number of retries. Exceeded max scheduling attempts 3 for instance 4a263600-de56-4a01-82d6-ce6ca8079e97. Last exception: internal error: process exited while connecting to monitor: 2018-07-05T03:05:33.748347Z qemu-kvm: cannot set up guest].

2.修改计算节点/etc/libvirtd/qemu.conf配置文件

vim /etc/libvirtd/qemu.conf

user = "root"
group = "root"

重启服务
systemctl restart libvirtd