conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_ACLS_ENABLED_KEY, true);
conf.set(FsPermission.UMASK_LABEL, "000");
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3).build();
cluster.waitActive();
fs = cluster.getFileSystem();
wrapper = new FileSystemTestWrapper(fs);
}