windows下运行spark程序报错：Failed to locate the winutils binary in the hadoop binary path

我就是我 2022-05-27 02:36 132阅读 0赞

之前在mac上调试hadoop程序（mac之前配置过hadoop环境）一直都是正常的。因为工作需要，需要在windows上先调试该程序，然后再转到linux下。程序运行的过程中，报Failed to locate the winutils binary in the hadoop binary path java.io.IOException: Could not locate executable null\\bin\\winutils.exe in the Hadoop binaries.

通过断点调试、查看源码发现程序需要根据HADOOP\_HOME找到winutils.exe,由于win机器并没有配置该环境变量，所以程序报 null\\bin\\winutils.exe。

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");
        }
        try {
           // couldn't find either setting for hadoop's home directory
           if (home == null) {
             throw new IOException("HADOOP_HOME or hadoop.home.dir are not set.");
           }
           if (home.startsWith("\"") && home.endsWith("\"")) {
             home = home.substring(1, home.length()-1);
           }
           // check that the home setting is actually a directory that exists
           File homedir = new File(home);
           if (!homedir.isAbsolute() || !homedir.exists() || !homedir.isDirectory()) {
             throw new IOException("Hadoop home directory " + homedir
               + " does not exist, is not a directory, or is not an absolute path.");
           }
           home = homedir.getCanonicalPath();
        } catch (IOException ioe) {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Failed to detect a valid hadoop home directory", ioe);
          }
          home = null;
        }    
        return home;
      }
    
    　　private static String HADOOP_HOME_DIR = checkHadoopHome();

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();
      }
    
      /** a Windows utility to emulate Unix commands */
      public static final String WINUTILS = getWinUtilsPath();
    
      public static final String getWinUtilsPath() {
        String winUtilsPath = null;
    
        try {
          if (WINDOWS) {
            winUtilsPath = getQualifiedBinPath("winutils.exe");
          }
        } catch (IOException ioe) {
           LOG.error("Failed to locate the winutils binary in the hadoop binary path",
             ioe);
        }
    
        return winUtilsPath;
      }

找到原因后就去网上问了度娘，找到了解决方案，很简单，如下：

1.  下载winutils的windows版本  
    　　GitHub上，有人提供了winutils的windows的版本，项目地址是：[https://github.com/srccodes/hadoop-common-2.2.0-bin][https_github.com_srccodes_hadoop-common-2.2.0-bin],直接下载此项目的zip包，下载后是文件名是hadoop-common-2.2.0-bin-master.zip,随便解压到一个目录
2.  配置环境变量  
    　　增加用户变量HADOOP\_HOME，值是下载的zip包解压的目录，然后在系统变量path里增加%HADOOP\_HOME%\\bin 即可。　　
3.  重启开发工具idea，再次运行程序，正常执行。

本文转载自博客园文章：[WIN7下运行hadoop程序报：Failed to locate the winutils binary in the hadoop binary path][WIN7_hadoop_Failed to locate the winutils binary in the hadoop binary path]

[https_github.com_srccodes_hadoop-common-2.2.0-bin]: https://github.com/srccodes/hadoop-common-2.2.0-bin
[WIN7_hadoop_Failed to locate the winutils binary in the hadoop binary path]: http://www.cnblogs.com/zq-inlook/p/4386216.html