更改主机名后，[Openstack]大多数服务状态为关闭。我该如何解决

Question

环境        1个控制器节点，1个计算机节点，1个块节点；所有操作系统都是Centos7.2        Openstack版本是Queens

原因：       所有节点的主机名是本地localhost.localdomain;       成功安装上面的三个节点后，所有服务节点状态都已启动。

  After I change the hostname  of every host  that the hostname of Controller node is changed to controller, the hostame of Computer node is changed to computer1 and the hostname of Block node is change to block1 ,  service state is down. 

这是命令的输出