namesystem.getBlockLocations(FILE1, 0, 2* BLOCK_SIZE);
List<LocatedBlock> blockList = blocks.getLocatedBlocks();
String holder = ((DistributedFileSystem) fileSystem).getClient().clientName;
// abandonBlock clears the targets of the INodeFileUnderConstruction
namesystem.abandonBlock(
blockList.get(blockList.size() - 1).getBlock(),
FILE1,
holder
);