zookeeper數據遷移

在不停機的情況下，實現集群之間數據遷移代碼：

private void create(ZooKeeper zk1, ZooKeeper zk2, String path) throws Exception {
        List<String> list = zk1.getChildren(path, null);
        for (String str : list) {
            if (path.endsWith("/")) {
            } else {
                path = path + "/";
            }
            System.out.println(path + str);
            zk2.create("/wapage_back" + path + str, zk1.getData(path+str, false, null), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
            create(zk1, zk2, path + str);
        }
        if (!path.endsWith("/")) zk2.setData("/wapage_back" + path, zk1.getData(path, false, null), -1);
    }