Ping

要获取关于特定 openstack messaging ping 命令的帮助，请输入

$ openstack messaging ping COMMAND -h/--help

唯一命令

messaging ping

openstack messaging ping

usage: openstack messaging ping [-h] [-f {json,shell,table,value,yaml}]
                                [-c COLUMN] [--max-width <integer>]
                                [--noindent] [--prefix PREFIX]

检查 Zaqar 服务器是否存活。