windows通过thrift访问hdfs

thirift是一个支持跨种语言的远程调用框架，通过thrift远程调用框架，结合hadoop1.x中的thriftfs，编写了一个针对hadoop2.x的thriftfs，供外部程序调用。

 1.准备工作

1.1 编译boost

boost下载地址：http://120.52.72.39/jaist.dl.sourceforge.net/c3pr90ntcsf0/project/boost/boost/1.60.0/boost_1_60_0.tar.gz

解压boost，windows运行bootstrap.bat，然后点击生成的b2.exe。

若有多个vs编译环境，选择特定环境编译时，选择该vs的命令提示工具（开始-》vs-》工具-》命令行xxx），cd boost解压目录，./b2.exe.

1.2 编译thrift

thrift下载地址：http://mirrors.cnnic.cn/apache/thrift/0.9.3/thrift-0.9.3.tar.gz

解压后，进入libcpp文件夹，选择thrift.sln（需要vs2010以上的工具打开），选择libthrift，设置boost头文件引用路径。

在编译过程中，删除不需要的.h和.cpp文件，增加需要的文件（视使用环境而定）。

1.3编译hadoopfs.thrift文件

下载编译好的thrift程序：http://www.apache.org/dyn/closer.cgi?path=/thrift/0.9.3/thrift-0.9.3.exe

修改hadoop1.x中的hadoopfs.thrift文件

hadoopfs.thrift内容：

#!/usr/local/bin/thrift -java
#
# Thrift Service exported by Hadoop File System
# Dhruba Borthakur (dhruba@gmail.com)
#

/**
 * The available types in Thrift:
 *
 *  bool        Boolean, one byte
 *  byte        Signed byte
 *  i16         Signed 16-bit integer
 *  i32         Signed 32-bit integer
 *  i64         Signed 64-bit integer
 *  double      64-bit floating point value
 *  string      String
 *  binary      Blob (byte array)
 *  map<t1,t2>  Map from one type to another
 *  list<t1>    Ordered list of one type
 *  set<t1>     Set of unique elements of one type
 *
 */

namespace java org.apache.hadoop.thriftfs.api
namespace php hadoopfs

struct ThriftHandle {
  1: i64 id
}

struct Pathname {
  1: string pathname
}

struct FileStatus {
  1: string path,
  2: i64 length,
  3: bool isdir,
  4: i16 block_replication,
  5: i64 blocksize,
  6: i64 modification_time,
  7: string permission,
  8: string owner,
  9: string group
}

struct BlockLocation {
  1: list<string> hosts,         /* hostnames of datanodes */
  2: list<string> names,         /* hostname:portNumber of datanodes */
  3: i64 offset,                 /* offset of the block in the file */
  4: i64 length                  /* length of data */
}

exception MalformedInputException {
  1: string message
}

exception ThriftIOException {
   1: string message
}

service ThriftHadoopFileSystem
{

  // set inactivity timeout period. The period is specified in seconds.
  // if there are no RPC calls to the HadoopThrift server for this much
  // time, then the server kills itself.
  void setInactivityTimeoutPeriod(1:i64 periodInSeconds),

  // close session
  void shutdown(1:i32 status),

  // create a file and open it for writing
  ThriftHandle create(1:Pathname path) throws (1:ThriftIOException ouch),

  // create a file and open it for writing
  ThriftHandle createFile(1:Pathname path, 2:i16 mode, 
                          3:bool overwrite, 4:i32 bufferSize, 
                          5:i16 block_replication, 6:i64 blocksize) 
                          throws (1:ThriftIOException ouch),

  // returns a handle to an existing file  for reading
  ThriftHandle open(1:Pathname path) throws (1:ThriftIOException ouch),

  // returns a handle to an existing file for appending to it.
  ThriftHandle append(1:Pathname path) throws (1:ThriftIOException ouch),

  // write a string to the open handle for the file
  bool write(1:ThriftHandle handle, 2:binary data) throws (1:ThriftIOException ouch),

  // read some bytes from the open handle for the file
  binary read(1:ThriftHandle handle, 2:i64 offset, 3:i32 size) throws (1:ThriftIOException ouch),

  // close file
  bool close(1:ThriftHandle out) throws (1:ThriftIOException ouch),

  // delete file(s) or directory(s)
  bool rm(1:Pathname path, 2:bool recursive) throws (1:ThriftIOException ouch),

  // rename file(s) or directory(s)
  bool rename(1:Pathname path, 2:Pathname dest) throws (1:ThriftIOException ouch),

  // create directory
  bool mkdirs(1:Pathname path) throws (1:ThriftIOException ouch),

  // Does this pathname exist?
  bool exists(1:Pathname path) throws (1:ThriftIOException ouch),

  // Returns status about the path
  FileStatus stat(1:Pathname path) throws (1:ThriftIOException ouch),

  // If the path is a directory, then returns the list of pathnames in that directory
  list<FileStatus> listStatus(1:Pathname path) throws (1:ThriftIOException ouch),

  // Set permission for this file
  void chmod(1:Pathname path, 2:i16 mode) throws (1:ThriftIOException ouch),

  // set the owner and group of the file.
  void chown(1:Pathname path, 2:string owner, 3:string group) throws (1:ThriftIOException ouch),

  // set the replication factor for all blocks of the specified file
  void setReplication(1:Pathname path, 2:i16 replication) throws (1:ThriftIOException ouch),

  // get the locations of the blocks of this file
  list<BlockLocation> getFileBlockLocations(1:Pathname path, 2:i64 start, 3:i64 length) throws (1:ThriftIOException ouch),
}

编译 cpp，java文件

cmd进入thrift.exe文件夹下，复制hadoopfs.thrift到相同目录，分别运行

thrift -gen java hadoopfs.thrift

thrift -gen cpp hadoopfs.thrift

生成gen-cpp, gen-java文件夹，里面为生成的程序文件

2.编写hdfs服务端程序（java）

2.1 eclipse创建libthrift工程，复制thrift解压路径/lib/java/src下的代码到工程src目录下；复制1.3生成的gen-java中的代码到工程src目录下；

解压hadoop2.x（下载地址：http://mirrors.cnnic.cn/apache/hadoop/common/hadoop-2.6.3/hadoop-2.6.3.tar.gz）；

eclipse添加lib引用的jar文件：进入hadoop2.x/share/hadoop/目录下，添加common, common/lib, hdfs, hdfs/lib文件夹下的所有jar到工程引用路径

修改hadoop1.x中提供的HadoopThriftServer代码为:

package org.apache.hadoop.thriftfs;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Random;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
// Include Generated code
import org.apache.hadoop.thriftfs.api.Pathname;
import org.apache.hadoop.thriftfs.api.ThriftHadoopFileSystem;
import org.apache.hadoop.thriftfs.api.ThriftHandle;
import org.apache.hadoop.thriftfs.api.ThriftIOException;
import org.apache.hadoop.util.Daemon;
import org.apache.hadoop.util.StringUtils;
import org.apache.thrift.TException;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TThreadPoolServer;
import org.apache.thrift.transport.TServerSocket;
import org.apache.thrift.transport.TServerTransport;

/**
 * ThriftHadoopFileSystem
 * A thrift wrapper around the Hadoop File System
 */
public class HadoopThriftServer extends ThriftHadoopFileSystem {

  static int serverPort = 0;                    // default port
  TServer    server = null;

  public static class HadoopThriftHandler implements ThriftHadoopFileSystem.Iface
  {

    public static final Log LOG = LogFactory.getLog("org.apache.hadoop.thrift");

    // HDFS glue
    Configuration conf;
    FileSystem fs;
        
    // stucture that maps each Thrift object into an hadoop object
    private long nextId = new Random().nextLong();
    private HashMap<Long, Object> hadoopHash = new HashMap<Long, Object>();
    private Daemon inactivityThread = null;

    // Detect inactive session
    private static volatile long inactivityPeriod = 3600 * 1000; // 1 hr
    private static volatile long inactivityRecheckInterval = 60 * 1000;
    private static volatile boolean fsRunning = true;
    private static long now;

    // allow outsider to change the hadoopthrift path
    public void setOption(String key, String val) {
    }

    /**
     * Current system time.
     * @return current time in msec.
     */
    static long now() {
      return System.currentTimeMillis();
    }

    /**
    * getVersion
    *
    * @return current version of the interface.
    */
    public String getVersion() {
      return "0.1";
    }

    /**
     * shutdown
     *
     * cleanly closes everything and exit.
     */
    @Override
    public void shutdown(int status) {
      LOG.info("HadoopThriftServer shutting down.");
      try {
        fs.close();
      } catch (IOException e) {
        LOG.warn("Unable to close file system");
      }
      Runtime.getRuntime().exit(status);
    }

    /**
     * Periodically checks to see if there is inactivity
     */
    class InactivityMonitor implements Runnable {
      @Override
    public void run() {
        while (fsRunning) {
          try {
            if (now() > now + inactivityPeriod) {
              LOG.warn("HadoopThriftServer Inactivity period of " +
                       inactivityPeriod + " expired... Stopping Server.");
              shutdown(-1);
            }
          } catch (Exception e) {
            LOG.error(StringUtils.stringifyException(e));
          }
          try {
            Thread.sleep(inactivityRecheckInterval);
          } catch (InterruptedException ie) {
          }
        }
      }
    }

    /**
     * HadoopThriftServer
     *
     * Constructor for the HadoopThriftServer glue with Thrift Class.
     *
     * @param name - the name of this handler
     */
    public HadoopThriftHandler(String name) {
      conf = new Configuration();
      now = now();
      try {
        inactivityThread = new Daemon(new InactivityMonitor());
        fs = FileSystem.get(conf);
      } catch (IOException e) {
        LOG.warn("Unable to open hadoop file system...");
        Runtime.getRuntime().exit(-1);
      }
    }

    /**
      * printStackTrace
      *
      * Helper function to print an exception stack trace to the log and not stderr
      *
      * @param e the exception
      *
      */
    static private void printStackTrace(Exception e) {
      for(StackTraceElement s: e.getStackTrace()) {
        LOG.error(s);
      }
    }

    /**
     * Lookup a thrift object into a hadoop object
     */
    private synchronized Object lookup(long id) {
      return hadoopHash.get(new Long(id));
    }

    /**
     * Insert a thrift object into a hadoop object. Return its id.
     */
    private synchronized long insert(Object o) {
      nextId++;
      hadoopHash.put(nextId, o);
      return nextId;
    }

    /**
     * Delete a thrift object from the hadoop store.
     */
    private synchronized Object remove(long id) {
      return hadoopHash.remove(new Long(id));
    }

    /**
      * Implement the API exported by this thrift server
      */

    /** Set inactivity timeout period. The period is specified in seconds.
      * if there are no RPC calls to the HadoopThrift server for this much
      * time, then the server kills itself.
      */
    @Override
    public synchronized void setInactivityTimeoutPeriod(long periodInSeconds) {
      inactivityPeriod = periodInSeconds * 1000; // in milli seconds
      if (inactivityRecheckInterval > inactivityPeriod ) {
        inactivityRecheckInterval = inactivityPeriod;
      }
    }


    /**
      * Create a file and open it for writing
      */
    @Override
    public ThriftHandle create(Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("create: " + path);
        FSDataOutputStream out = fs.create(new Path(path.pathname));
        long id = insert(out);
        ThriftHandle obj = new ThriftHandle(id);
        HadoopThriftHandler.LOG.debug("created: " + path + " id: " + id);
        return obj;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
      * Create a file and open it for writing, delete file if it exists
      */
    @Override
    public ThriftHandle createFile(Pathname path, 
                                   short mode,
                                   boolean  overwrite,
                                   int bufferSize,
                                   short replication,
                                   long blockSize) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("create: " + path +
                                     " permission: " + mode +
                                     " overwrite: " + overwrite +
                                     " bufferSize: " + bufferSize +
                                     " replication: " + replication +
                                     " blockSize: " + blockSize);
        FSDataOutputStream out = fs.create(new Path(path.pathname), 
                                           new FsPermission(mode),
                                           overwrite,
                                           bufferSize,
                                           replication,
                                           blockSize,
                                           null); // progress
        long id = insert(out);
        ThriftHandle obj = new ThriftHandle(id);
        HadoopThriftHandler.LOG.debug("created: " + path + " id: " + id);
        return obj;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Opens an existing file and returns a handle to read it
     */
    @Override
    public ThriftHandle open(Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("open: " + path);
        FSDataInputStream out = fs.open(new Path(path.pathname));
        long id = insert(out);
        ThriftHandle obj = new ThriftHandle(id);
        HadoopThriftHandler.LOG.debug("opened: " + path + " id: " + id);
        return obj;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Opens an existing file to append to it.
     */
    @Override
    public ThriftHandle append(Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("append: " + path);
        FSDataOutputStream out = fs.append(new Path(path.pathname));
        long id = insert(out);
        ThriftHandle obj = new ThriftHandle(id);
        HadoopThriftHandler.LOG.debug("appended: " + path + " id: " + id);
        return obj;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * write to a file
    */
    @Override
    public boolean write(ThriftHandle tout, ByteBuffer data)
            throws ThriftIOException, TException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("write: " + tout.id);
        FSDataOutputStream out = (FSDataOutputStream)lookup(tout.id);
        // Retrieve all bytes in the buffer
        byte[] bytes = new byte[data.limit()];
        // transfer bytes from this buffer into the given destination array
        data.get(bytes);
        out.write(bytes, 0, bytes.length);
        data.clear();
        HadoopThriftHandler.LOG.debug("wrote: " + tout.id);
        return true;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    } 

    /**
     * read from a file
     */
    @Override
    public ByteBuffer read(ThriftHandle tout, long offset, int length)
            throws ThriftIOException, TException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("read: " + tout.id +
                                     " offset: " + offset +
                                     " length: " + length);
        FSDataInputStream in = (FSDataInputStream)lookup(tout.id);
        if (in.getPos() != offset) {
          in.seek(offset);
        }
        byte[] tmp = new byte[length];
        int numbytes = in.read(offset, tmp, 0, length);
        HadoopThriftHandler.LOG.debug("read done: " + tout.id);
        return ByteBuffer.wrap(tmp,0,numbytes);
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Delete a file/directory
     */
    @Override
    public boolean rm(Pathname path, boolean recursive) 
                          throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("rm: " + path +
                                     " recursive: " + recursive);
        boolean ret = fs.delete(new Path(path.pathname), recursive);
        HadoopThriftHandler.LOG.debug("rm: " + path);
        return ret;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Move a file/directory
     */
    @Override
    public boolean rename(Pathname path, Pathname dest) 
                          throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("rename: " + path +
                                     " destination: " + dest);
        boolean ret = fs.rename(new Path(path.pathname), 
                                new Path(dest.pathname));
        HadoopThriftHandler.LOG.debug("rename: " + path);
        return ret;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     *  close file
     */
     @Override
    public boolean close(ThriftHandle tout) throws ThriftIOException {
       try {
         now = now();
         HadoopThriftHandler.LOG.debug("close: " + tout.id);
         Object obj = remove(tout.id);
         if (obj instanceof FSDataOutputStream) {
           FSDataOutputStream out = (FSDataOutputStream)obj;
           out.close();
         } else if (obj instanceof FSDataInputStream) {
           FSDataInputStream in = (FSDataInputStream)obj;
           in.close();
         } else {
           throw new ThriftIOException("Unknown thrift handle.");
         }
         HadoopThriftHandler.LOG.debug("closed: " + tout.id);
         return true;
       } catch (IOException e) {
         throw new ThriftIOException(e.getMessage());
       }
     }

     /**
      * Create a directory
      */
    @Override
    public boolean mkdirs(Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("mkdirs: " + path);
        boolean ret = fs.mkdirs(new Path(path.pathname));
        HadoopThriftHandler.LOG.debug("mkdirs: " + path);
        return ret;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Does this pathname exist?
     */
    @Override
    public boolean exists(Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("exists: " + path);
        boolean ret = fs.exists(new Path(path.pathname));
        HadoopThriftHandler.LOG.debug("exists done: " + path);
        return ret;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Returns status about the specified pathname
     */
    @Override
    public org.apache.hadoop.thriftfs.api.FileStatus stat(
                            Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("stat: " + path);
        org.apache.hadoop.fs.FileStatus stat = fs.getFileStatus(
                                           new Path(path.pathname));
        HadoopThriftHandler.LOG.debug("stat done: " + path);
        return new org.apache.hadoop.thriftfs.api.FileStatus(
          stat.getPath().toString(),
          stat.getLen(),
          stat.isDir(),
          stat.getReplication(),
          stat.getBlockSize(),
          stat.getModificationTime(),
          stat.getPermission().toString(),
          stat.getOwner(),
          stat.getGroup());
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * If the specified pathname is a directory, then return the
     * list of pathnames in this directory
     */
    @Override
    public List<org.apache.hadoop.thriftfs.api.FileStatus> listStatus(
                            Pathname path) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("listStatus: " + path);

        org.apache.hadoop.fs.FileStatus[] stat = fs.listStatus(
                                           new Path(path.pathname));
        HadoopThriftHandler.LOG.debug("listStatus done: " + path);
        org.apache.hadoop.thriftfs.api.FileStatus tmp;
        List<org.apache.hadoop.thriftfs.api.FileStatus> value = 
          new LinkedList<org.apache.hadoop.thriftfs.api.FileStatus>();

        for (int i = 0; i < stat.length; i++) {
          tmp = new org.apache.hadoop.thriftfs.api.FileStatus(
                      stat[i].getPath().toString(),
                      stat[i].getLen(),
                      stat[i].isDir(),
                      stat[i].getReplication(),
                      stat[i].getBlockSize(),
                      stat[i].getModificationTime(),
                      stat[i].getPermission().toString(),
                      stat[i].getOwner(),
                      stat[i].getGroup());
          value.add(tmp);
        }
        return value;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Sets the permission of a pathname
     */
    @Override
    public void chmod(Pathname path, short mode) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("chmod: " + path + 
                                     " mode " + mode);
        fs.setPermission(new Path(path.pathname), new FsPermission(mode));
        HadoopThriftHandler.LOG.debug("chmod done: " + path);
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Sets the owner & group of a pathname
     */
    @Override
    public void chown(Pathname path, String owner, String group) 
                                                       throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("chown: " + path +
                                     " owner: " + owner +
                                     " group: " + group);
        fs.setOwner(new Path(path.pathname), owner, group);
        HadoopThriftHandler.LOG.debug("chown done: " + path);
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }

    /**
     * Sets the replication factor of a file
     */
    @Override
    public void setReplication(Pathname path, short repl) throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("setrepl: " + path +
                                     " replication factor: " + repl);
        fs.setReplication(new Path(path.pathname), repl);
        HadoopThriftHandler.LOG.debug("setrepl done: " + path);
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }

    }

    /**
     * Returns the block locations of this file
     */
    @Override
    public List<org.apache.hadoop.thriftfs.api.BlockLocation> 
             getFileBlockLocations(Pathname path, long start, long length) 
                                         throws ThriftIOException {
      try {
        now = now();
        HadoopThriftHandler.LOG.debug("getFileBlockLocations: " + path);

        org.apache.hadoop.fs.FileStatus status = fs.getFileStatus(
                                                 new Path(path.pathname));

        org.apache.hadoop.fs.BlockLocation[] stat = 
            fs.getFileBlockLocations(status, start, length);
        HadoopThriftHandler.LOG.debug("getFileBlockLocations done: " + path);

        org.apache.hadoop.thriftfs.api.BlockLocation tmp;
        List<org.apache.hadoop.thriftfs.api.BlockLocation> value = 
          new LinkedList<org.apache.hadoop.thriftfs.api.BlockLocation>();

        for (int i = 0; i < stat.length; i++) {

          // construct the list of hostnames from the array returned
          // by HDFS
          List<String> hosts = new LinkedList<String>();
          String[] hostsHdfs = stat[i].getHosts();
          for (int j = 0; j < hostsHdfs.length; j++) {
            hosts.add(hostsHdfs[j]);
          }

          // construct the list of host:port from the array returned
          // by HDFS
          List<String> names = new LinkedList<String>();
          String[] namesHdfs = stat[i].getNames();
          for (int j = 0; j < namesHdfs.length; j++) {
            names.add(namesHdfs[j]);
          }
          tmp = new org.apache.hadoop.thriftfs.api.BlockLocation(
                      hosts, names, stat[i].getOffset(), stat[i].getLength());
          value.add(tmp);
        }
        return value;
      } catch (IOException e) {
        throw new ThriftIOException(e.getMessage());
      }
    }
    
  }

  // Bind to port. If the specified port is 0, then bind to random port.
  private ServerSocket createServerSocket(int port) throws IOException {
    try {
      ServerSocket sock = new ServerSocket();
      // Prevent 2MSL delay problem on server restarts
      sock.setReuseAddress(true);
      // Bind to listening port
      if (port == 0) {
        sock.bind(null);
        serverPort = sock.getLocalPort();
      } else {
        sock.bind(new InetSocketAddress(port));
      }
      return sock;
    } catch (IOException ioe) {
      throw new IOException("Could not create ServerSocket on port " + port + "." +
                            ioe);
    }
  }

  /**
   * Constrcts a server object
   */
  public HadoopThriftServer(String [] args) {

    if (args.length > 0) {
      serverPort = new Integer(args[0]);
    }
    try {
      ServerSocket ssock = createServerSocket(serverPort);
      TServerTransport serverTransport = new TServerSocket(ssock);
      Iface handler = new HadoopThriftHandler("hdfs-thrift-dhruba");
      ThriftHadoopFileSystem.Processor processor = new ThriftHadoopFileSystem.Processor(handler);
      TThreadPoolServer.Args options = new TThreadPoolServer.Args(serverTransport);
      options.minWorkerThreads(10);
      options.processor(processor);
      server = new TThreadPoolServer(options);
      System.out.println("Starting the hadoop thrift server on port [" + serverPort + "]...");
      HadoopThriftHandler.LOG.info("Starting the hadoop thrift server on port [" +serverPort + "]...");
      System.out.flush();

    } catch (Exception x) {
      x.printStackTrace();
    }
  }

  public static void main(String [] args) {
    HadoopThriftServer me = new HadoopThriftServer(args);
    me.server.serve();
  }
};

红色部分为修改的内容；这里，我们使用thrift的binary类型传输文件！！！

参考资料：使用Thrift传输二进制数据遇到的问题 

[转]java.nio.ByteBuffer 类 缓冲区

本文转自:http://blog.sina.com.cn/s/blog_4150f50c0100gfa3.html

 3.windows c++客户端

3.1创建工程，添加boost，thrift中的lib/cpp/src文件夹为头文件引用路径，将1.2生成的libthrift.lib添加到工程根目录（或添加到库目录引用路径）

3.2复制1.3生成的gen-cpp文件夹下的代码到工程根目录，添加到工程

3.3 编写thriftfsclient处理类：

HdfsClient.h

#pragma once
#include "hadoopfs_types.h"
#include "ThriftHadoopFileSystem.h"
#include <boostshared_ptr.hpp>
#include <thrift	ransportTSocket.h>
#include <thrift	ransportTBufferTransports.h>
#include <thriftprotocolTBinaryProtocol.h>

using namespace ::apache::thrift;
using namespace ::apache::thrift::protocol;
using namespace ::apache::thrift::transport;
using boost::shared_ptr;


#define FILEOPEN_SUCCESS 0

class HdfsClient
{
private:
    bool m_IsConn;
    shared_ptr<TTransport> m_Socket;
    shared_ptr<TBufferedTransport> m_Transport;
    shared_ptr<TBinaryProtocol> m_Protocol;
    shared_ptr<ThriftHadoopFileSystemClient> m_Client;
    ThriftHandle m_Handler;
public:
    HdfsClient(void);
    ~HdfsClient(void);

    bool connect(const std::string server,int port);
    bool shutdown();
    bool put(const std::string& localfile,const std::string& rem_path);
    bool append(const std::string& localfile,const std::string& rem_path);
    bool get(const std::string& rem_path,const std::string& localfile);
    bool rm(const std::string& rem_path, const bool recursive=false);
    bool mv(const std::string& src_path,const std::string& dst_path);
    bool mkdirs(const std::string& rem_path);
    bool exists(const std::string& rem_path);
    void ls(std::vector<FileStatus> & result, const std::string& path);
    void chmod(const std::string& path, const int16_t mode);
    void chown(const std::string& path, const std::string& owner);
    void setReplication(const std::string& path, const int16_t replication);
    void getFileBlockLocations(std::vector<BlockLocation> & result, const std::string& path, const int64_t start, const int64_t length);
};

HdfsClient.cpp

#include "StdAfx.h"
#include "HdfsClient.h"
#include <stdio.h>

HdfsClient::HdfsClient(void)
{
    m_IsConn = false;
}

HdfsClient::~HdfsClient(void)
{
    if(m_IsConn)
        shutdown();
}

bool HdfsClient::connect(std::string server,int port)
{
    m_Socket = shared_ptr<TTransport>(new TSocket(server,port));
    m_Transport = shared_ptr<TBufferedTransport>(new TBufferedTransport(m_Socket));
    m_Protocol = shared_ptr<TBinaryProtocol>(new TBinaryProtocol(m_Transport));
    m_Client = shared_ptr<ThriftHadoopFileSystemClient>(new ThriftHadoopFileSystemClient(m_Protocol));

    try
    {
        m_Transport->open();
        // tell the HadoopThrift server to die after 60 minutes of inactivity
        m_Client->setInactivityTimeoutPeriod(3600);
        m_IsConn = true;
    }
    catch (const ThriftIOException& ex)
    {
        printf("ERROR: %s",ex.message.c_str());
        return false;
    }
    return true;
}


bool HdfsClient::shutdown()
{
    try
    {
        m_Transport->close();
        m_IsConn = false;
    }
    catch (const ThriftIOException& ex)
    {
        printf("ERROR: %s",ex.message.c_str());
        return false;
    }
    return true;
}

bool HdfsClient::put(const std::string& localfile,const std::string& rem_path)
{
    Pathname ptname;
    ptname.pathname = rem_path;
    m_Client->create(m_Handler,ptname);//Create the specified file. Returns a handle to write data.

    if(m_Handler.id == 0)//error
        return false;
    else
    {
        FILE* fp = fopen(localfile.c_str(),"rb");
        if(GetLastError() != FILEOPEN_SUCCESS) return false;

        /*//A.read the whole file into content;
        //把文件的位置指针移到文件尾
        fseek(fp,0L,SEEK_END);
        //获取文件长度;
        long length=ftell(fp);
        fseek(fp,0,SEEK_SET);//将文件指针设置到开始位置
        char* buffer = new char[length];
        //memset(buffer,'',length);
        fread(buffer,sizeof(char),length,fp);
        //write data to hdfs
        std::string content;
        content.append(buffer,buffer+length);//string
        m_Client->write(m_Handler,content);*/

        //B.分块读取，然后上传; 可以使用内存映射文件方式将文件读入内存，然后发送到hdfs
        size_t bufferSize = 1 << 20;//1M
        size_t readSize = 0;
        char* buffer = new char[bufferSize];
        while(!feof(fp))
        {
            readSize = fread(buffer,sizeof(char),bufferSize,fp);
            //write data to hdfs
            std::string content;
            content.append(buffer,buffer+readSize);//string
            m_Client->write(m_Handler,content);
        }
        fclose(fp);
        delete[] buffer;
        return m_Client->close(m_Handler);
    }
}

bool HdfsClient::append(const std::string& localfile,const std::string& rem_path)
{
    Pathname ptname;
    ptname.pathname = rem_path;
    m_Client->append(m_Handler,ptname);

    if(m_Handler.id == 0)//error
        return false;
    else
    {
        FILE* fp = fopen(localfile.c_str(),"rb");
        if(GetLastError() != FILEOPEN_SUCCESS) return false;

        /*//A.read the whole file into content;
        //把文件的位置指针移到文件尾
        fseek(fp,0L,SEEK_END);
        //获取文件长度;
        long length=ftell(fp);
        fseek(fp,0,SEEK_SET);//将文件指针设置到开始位置
        char* buffer = new char[length];
        //memset(buffer,'',length);
        fread(buffer,sizeof(char),length,fp);
        //write data to hdfs
        std::string content;
        content.append(buffer,buffer+length);//string
        m_Client->write(m_Handler,content);*/

        //B.分块读取，然后上传; 可以使用内存映射文件方式将文件读入内存，然后发送到hdfs
        size_t bufferSize = 1 << 20;//1M
        size_t readSize = 0;
        char* buffer = new char[bufferSize];
        while(!feof(fp))
        {
            readSize = fread(buffer,sizeof(char),bufferSize,fp);
            //write data to hdfs
            std::string content;
            content.append(buffer,buffer+readSize);//string
            m_Client->write(m_Handler,content);
        }
        fclose(fp);
        delete[] buffer;
        return m_Client->close(m_Handler);
    }
}

bool HdfsClient::get(const std::string& rem_path,const std::string& localfile)
{
    Pathname ptname;
    ptname.__set_pathname(rem_path);
    m_Client->open(m_Handler,ptname);

    if(m_Handler.id == 0)//error
        return false;
    else
    {
        FileStatus rfstat;
        m_Client->stat(rfstat,ptname);

        int64_t offset = 0;
        int bufferSize = 1 << 20;//1M
        std::string content;
        int contentlen = 0;
        FILE* fp = fopen(localfile.c_str(),"wb+");
        DWORD err_code = GetLastError();
        if(err_code != FILEOPEN_SUCCESS) return false;

        while(offset < rfstat.length)
        {
            m_Client->read(content,m_Handler,offset,bufferSize);
            contentlen = content.length();
            if(contentlen > 0)
            {
                fwrite(content.c_str(),sizeof(char),contentlen,fp);//todo: can use multi thread to read and write
                offset += contentlen;
            }
            else
                break;
        }
        fclose(fp);
        return m_Client->close(m_Handler);
    }
}

bool HdfsClient::rm(const std::string& rem_path, const bool recursive)
{
    Pathname ptname;
    ptname.pathname = rem_path;
    return m_Client->rm(ptname,recursive);
}

bool HdfsClient::mv(const std::string& src_path,const std::string& dst_path)
{
    Pathname src_ptname,dst_ptname;
    src_ptname.pathname = src_path;
    dst_ptname.pathname = dst_path;
    return m_Client->rename(src_ptname,dst_ptname);
}

bool HdfsClient::mkdirs(const std::string& rem_path)
{
    Pathname ptname;
    ptname.pathname = rem_path;
    return m_Client->mkdirs(ptname);
}

bool HdfsClient::exists(const std::string& rem_path)
{
    Pathname ptname;
    ptname.pathname = rem_path;
    return m_Client->exists(ptname);
}

void HdfsClient::ls(std::vector<FileStatus> & result, const std::string& path)
{
    Pathname ptname;
    ptname.pathname = path;
    m_Client->listStatus(result,ptname);
}

void HdfsClient::chmod(const std::string& path, const int16_t mode)
{
    Pathname ptname;
    ptname.pathname = path;
    m_Client->chmod(ptname,mode);
}

void HdfsClient::chown(const std::string& path, const std::string& owner)
{
    Pathname ptname;
    ptname.pathname = path;

    FileStatus rfstat;
    m_Client->stat(rfstat,ptname);
    m_Client->chown(ptname,owner,rfstat.group);
}

void HdfsClient::setReplication(const std::string& path, const int16_t replication)
{
    Pathname ptname;
    ptname.pathname = path;
    m_Client->setReplication(ptname,replication);
}

void HdfsClient::getFileBlockLocations(std::vector<BlockLocation> & result, const std::string& path, const int64_t start, const int64_t length)
{
    Pathname ptname;
    ptname.pathname = path;

    m_Client->getFileBlockLocations(result,ptname,start,length);
}

int main()
{
    std::string host = "192.168.0.111";
    int port = 50841;
    HdfsClient hdfs;
    std::string local_file = ".\hadoop1.1.2-thriftfs.rar";
    std::string local_file2 = ".\test.rar";
    std::string rem_file = "hdfs://master:9000/test.txt";
    std::string rem_dir = "hdfs://master:9000/";
    hdfs.connect(host,port);
    std::vector<FileStatus> result;
    hdfs.put(local_file,rem_file);
    //hdfs.append(local_file,rem_file);
    //hdfs.rm(rem_file);
    hdfs.ls(result,rem_dir);
    for (std::vector<FileStatus>::const_iterator itr = result.begin();
        itr != result.end(); itr++)
    {
        printf("%s	%d
",itr->path.c_str(),itr->length);
    }
    hdfs.get(rem_file,local_file2);
    getchar();
    return 0;
}

 4.测试

4.1安装配置hadoop2.x环境

（具体步骤参考网络）

4.2 编写开启服务端程序的脚本

首先将服务端的java代码编译成功后打包成jar文件（libthrift.jar），放在libthrift文件夹下。

然后复制hadoop安装目录/etc/hadoop/下的core-site.xml 和 hdfs-site.xml配置文件到脚本所在目录（访问hdfs时使用）（参考：http://blog.csdn.net/kkdelta/article/details/19908209）

start_thrift_server.sh脚本

#!/bin/sh

CLASSPATH=
HADOOP_DIR=/usr/hadoop-2.6.3

# the hadoop common libraries
for f in $HADOOP_DIR/share/hadoop/common/*.jar ; do
  CLASSPATH=$CLASSPATH:$f
done

# the apache libraries
for f in $HADOOP_DIR/share/hadoop/common/lib/*.jar ; do
  CLASSPATH=$CLASSPATH:$f
done

# the hadoop hdfs libraries
for f in $HADOOP_DIR/share/hadoop/hdfs/*.jar ; do
  CLASSPATH=$CLASSPATH:$f
done

# the apache libraries
for f in $HADOOP_DIR/share/hadoop/hdfs/lib/*.jar ; do
  CLASSPATH=$CLASSPATH:$f
done

# the thrift libraries
for f in ./libthrift/*.jar ; do
  CLASSPATH=$CLASSPATH:$f
done

java -Dcom.sun.management.jmxremote -cp $CLASSPATH org.apache.hadoop.thriftfs.HadoopThriftServer $*

运行该脚本，记录程序数据的端口号，便于客户端使用。

测试c++客户端，测试上传、下载等操作是否正常。