out.writeInt(req.replication()); out.writeLong(req.blockSize());
out.writeInt(req.replication()); out.writeLong(req.blockSize());
req.replication(in.readInt()); req.blockSize(in.readLong());
req.replication(in.readInt()); req.blockSize(in.readLong());
req.replication(),// Replication factor.
req.replication(),// Replication factor.