@Override
 @Before
 public void setUp() throws Exception {
   // create the test root on local_fs
   fsTarget = fHdfs;
   fsTarget2 = fHdfs2;
   targetTestRoot2 = new FileSystemTestHelper().getAbsoluteTestRootPath(fsTarget2);
   super.setUp();
 }
 @Override
 @After
 public void tearDown() throws Exception {
   super.tearDown();
 }
 @Override
 void setupMountPoints() {
   super.setupMountPoints();
   ConfigUtil.addLink(conf, "/mountOnNn2", new Path(targetTestRoot2, "mountOnNn2").toUri());
 }
 @Override
 @Before
 public void setUp() throws Exception {
   fsTarget = fHdfs;
   super.setUp();
 }