def METHOD_NAME(self):
    '''
    Check whether GPDB is multinode
    For OSX, it will always be single node. It's documented about issues with OSX and GPBD setting up
    @note: On DCA, the hostname for each segment is different, but the address is pointing to localhost
    localhost
    '''
    if os.uname()[0] == 'Darwin':
        return False
    # We check hostname, as we could have different addresses
    # on the same host.
    hostname_set = set([r.hostname for r in self.record])
    if len(hostname_set) == 1:
        return False
    else:
        return True