Check if zeromq socket is available
        on transport host

def check_transport_host(self):
        """
        Check if zeromq socket is available
        on transport host
        """
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result = sock.connect_ex(('events-server', 8080))
        if result == 0:
            logging.info('port 8080 on zmq is open!')
            return True
        return False