'Creates a HadoopFileSystem object configured for this cluster.'

@property
def fs(self):

    if (self._fs is None):
        self._fs = HadoopFileSystem('localhost', thrift_port=self.namenode_thrift_port, hdfs_port=self.namenode_port, hadoop_bin_path=hadoop.conf.HADOOP_BIN.get())
    return self._fs
