Hadoop报错：Failed to locate the winutils binary in the hadoop binary path

悠悠 2021-09-26 02:10 711阅读 0赞

**1 发现问题**

在虚拟机中搭建了hadoop集群，在windows中通过代码访问报错

15/06/11 15:35:50 ERROR Shell: 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.
        at org.apache.hadoop.util.Shell.getQualifiedBinPath(Shell.java:356)
        at org.apache.hadoop.util.Shell.getWinUtilsPath(Shell.java:371)
        at org.apache.hadoop.util.Shell.<clinit>(Shell.java:364)

**2 分析问题**  
打开源码，查看getQualifiedBinPath方法

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");
        }
         ...
    }

exeFile不存在会报错，也就是fullExeName不存在。即windows中没有配置HADOOP\_HOME。  
  
**3 解决问题**  
配置环境变量E:\\\\Program Files\\\\hadoop-2.7.0重启电脑。 或者代码中设置System.setProperty("hadoop.home.dir", "E:\\\\Program Files\\\\hadoop-2.7.0"); 还有一种可能HADOOP\_HOME的bin目录下根本没有winutils.exe，下载地址https://github.com/srccodes/hadoop-common-2.2.0-bin

原贴地址：http://www.cnblogs.com/hyl8218/p/5492450.html