java操作hbase报错：KeeperErrorCode=NoNode for /hbase-unsecure/master

 /**
     * 生成连接
     * 
     * @param jdbcDataSource
     *            连接信息
     * @throws IOException
     *             连接异常
     */
    private void getDataSource(JdbcDataSource jdbcDataSource) throws IOException {
        String[] zkAdress = jdbcDataSource.getZkAddress().split(CommonConstants.SPLIT_SCOLON);
        conf.set("zookeeper.znode.parent", "/hbase");
        conf.set("hbase.zookeeper.quorum", "192.168.20.91");
        conf.set("hadoop.user.name", "root");
        conf.set("hbase.zookeeper.property.clientPort", "2181");
        conf.setInt("hbase.client.operation.timeout", JdbcConstants.HBASE_TIMEOUT);
        connection = ConnectionFactory.createConnection(conf, pool);
        admin = connection.getAdmin();
    }

<property>
      <name>zookeeper.znode.parent</name>
      <value>/hbase-unsecure</value>
</property>