我想创建java代码来保存我的文本内容或将其附加到hdfs中的文件中，但它返回错误，流是我的java代码来将我的文本内容附加到hdfs中的文件中 HDFS 系统：

public class FileAppend {

    public static final String uri = "hdfs://192.168.3.152:9000/work/log.txt";

    public static void main(String[] args) throws IOException {

         String content = "bonjour";
         Configuration conf = new Configuration();

         FileSystem fs = FileSystem.get(URI.create(uri), conf);

         boolean flag = Boolean.getBoolean(fs.getConf().get("dfs.support.append"));

         System.out.println("dfs.support.append is set to be " + flag);

         if (true) {

         FSDataOutputStream fsout = fs.append(new Path(uri));

         PrintWriter writer = new PrintWriter(fsout);

         writer.append(content);

         writer.close();

         } else {

         System.err.println("please set the dfs.support.append to be true");

         }

         fs.close();

我的报税代码是：

juil. 04, 2016 10:01:32 AM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFOS: Retrying connect to server: /192.168.3.152:9000. Already tried 0 time(s).
juil. 04, 2016 10:01:33 AM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFOS: Retrying connect to server: /192.168.3.152:9000. Already tried 1 time(s).
juil. 04, 2016 10:01:34 AM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFOS: Retrying connect to server: /192.168.3.152:9000. Already tried 2 time(s).
juil. 04, 2016 10:01:35 AM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFOS: Retrying connect to server: /192.168.3.152:9000. Already tried 3 time(s).