}
private void append(ZKDatabase zkdb, int i) throws IOException {
TxnHeader hdr = new TxnHeader(1, 1, i, 1, ZooDefs.OpCode.setData);
Record txn = new SetDataTxn("/foo" + i, new byte[0], 1);
Request req = new Request(null, 0, 0, 0, null, null);
req.hdr = hdr;
req.txn = txn;
zkdb.append(req);
zkdb.commit();