version2.mkdir();
long zxid = ZxidUtils.makeZxid(3, 3);
logFactory.append(new Request(1, 1, ZooDefs.OpCode.error,
new TxnHeader(1, 1, zxid, 1, ZooDefs.OpCode.error),
new ErrorTxn(1), zxid));
logFactory.commit();
ZKDatabase zkDb = new ZKDatabase(logFactory);
QuorumPeer peer = new QuorumPeer();
peer.setZKDatabase(zkDb);
peer.setTxnFactory(logFactory);
peer.getLastLoggedZxid();