Hadoop学习三十：Win7 Eclipse调试Centos Hadoop2.2-Mapreduce

java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.

public static final String getQualifiedBinPath(String executable) 
  throws IOException {
    // construct hadoop bin path to the specified executable
    String fullExeName = HADOOP_HOME_DIR + File.separator + "bin" 
      + File.separator + executable;

    File exeFile = new File(fullExeName);
    if (!exeFile.exists()) {
      throw new IOException("Could not locate executable " + fullExeName
        + " in the Hadoop binaries.");
    }

    return exeFile.getCanonicalPath();
  }

private static String HADOOP_HOME_DIR = checkHadoopHome();
private static String checkHadoopHome() {

    // first check the Dflag hadoop.home.dir with JVM scope
    String home = System.getProperty("hadoop.home.dir");

    // fall back to the system/user-global env variable
    if (home == null) {
      home = System.getenv("HADOOP_HOME");
    }
     ...
}

Could not locate executable D:\Hadoop\tar\hadoop-2.2.0\hadoop-2.2.0\bin\winutils.exe in the Hadoop binaries.

at org.apache.hadoop.util.Shell.execCommand(Shell.java:661)
at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:639)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:435)

public static String[] getSetPermissionCommand(String perm, boolean recursive,
                                                 String file) {
    String[] baseCmd = getSetPermissionCommand(perm, recursive);
    String[] cmdWithFile = Arrays.copyOf(baseCmd, baseCmd.length + 1);
    cmdWithFile[cmdWithFile.length - 1] = file;
    return cmdWithFile;
  }

  /** Return a command to set permission */
  public static String[] getSetPermissionCommand(String perm, boolean recursive) {
    if (recursive) {
      return (WINDOWS) ? new String[] { WINUTILS, "chmod", "-R", perm }
                         : new String[] { "chmod", "-R", perm };
    } else {
      return (WINDOWS) ? new String[] { WINUTILS, "chmod", perm }
                       : new String[] { "chmod", perm };
    }
  }

无法启动此程序，因为计算机中丢失 MSVCR100.dll

应用程序无法正常启动(0xc000007b)

Exception in thread "main" java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z

/** Windows only method used to check if the current process has requested
     *  access rights on the given path. */
    private static native boolean access0(String path, int requestedAccess);