Cannot import instack.json for Overcloud nodes

Question

I'm trying to run a TripleO test environment using virtual machine on my laptop. After successfully installing the undercloud, now it's time to create the overcloud. The first step to install (or deploy) the overcloud is registering the nodes and in order to do so, I have created a json file as the following :

{
  "nodes": [
        {
            "mac": [
                    "08:00:27:90:ae:67"
            ],
            "cpu": "1",
            "memory": "6077",
            "disk": "20",
            "name": "server2",
            "arch": "x86_64",
            "pm_type": "pxe_ipmitool",
            "pm_user": "root",
            "pm_password": "password",
            "pm_addr": "192.168.1.27"
          }
     ]
}

where mac : is the mac address of my VM's NIC, pm_user and pm_password are credentials to access the VM, pm_addr is the IP address of the VM.

In order to create this node I'm running the following command : openstack overcloud node import /home/stack/instackenv.json, but then I'm having the following message that remains forever without resulting any errors : "Waiting for messages on queue 'tripleo' with no timeout."

If you have any idea please let me know. Thanks in advance.