Ping ==== For help on a specific :command:`openstack messaging ping` command, enter: .. code-block:: console $ openstack messaging ping COMMAND -h/--help The one command: .. code-block:: console messaging ping .. _openstack_messaging_ping: openstack messaging ping ------------------------ .. code-block:: console usage: openstack messaging ping [-h] [-f {json,shell,table,value,yaml}] [-c COLUMN] [--max-width ] [--noindent] [--prefix PREFIX] Check if Zaqar server is alive or not.