final BlockManager bm = namesystem.getBlockManager();
FileSystem fs = cluster.getFileSystem();
Path p = new Path(MiniDFSCluster.getBaseDirectory(), "/foo1");
FSDataOutputStream out = fs.create(p, (short) 2);
out.writeBytes("HDFS-3119: " + p);
out.hsync();
fs.setReplication(p, (short) 1);
out.close();
ExtendedBlock block = DFSTestUtil.getFirstBlock(fs, p);
assertEquals("Expected only one live replica for the block", 1, bm
.countNodes(block.getLocalBlock()).liveReplicas());