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 nullbinwinutils.exe in the Hadoop binaries.
First, make sure you have the Java 8 JDK (or Java 11 JDK) installed. To check, open the terminal and type: java -version (Make sure you have version 1.8 or 11.) (If you don't have it installed, download Java from Oracle Java 8, Oracle Java 11, or AdoptOpenJDK 8/11.Refer JDK Compatibility for Scala/Java compatiblity detail. Atlas uses TitanDB (JanusGraph in 1.0) as its underlying database. This supports many different back ends. Table names: Prior to v1, atlastitan. For v1 it is atlasjanus. You are right in noting that in Hadoop ecosystem, HBase for data storage with Solr for index storage. HDFS hook is tricky from many aspects. 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 executab.
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 nullbinwinutils.exe。
Windows上并没有安装hadoop，hadoop在linux虚拟机上安装着，当使用代码操作虚拟机上的hdfs、hive、或者测试rpc时，出现如下错误： ERROR main util.Shell (Shell.java:getWinUtilsPath(396)) - Failed to locate the winutils binary in the hadoop binary path java.io.IOException: Could not locate executable nul. Atlas uses TitanDB (JanusGraph in 1.0) as its underlying database. This supports many different back ends. Table names: Prior to v1, atlastitan. For v1 it is atlasjanus. You are right in noting that in Hadoop ecosystem, HBase for data storage with Solr for index storage. HDFS hook is tricky from many aspects.
privatestatic String HADOOP_HOME_DIR = checkHadoopHome();
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：
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1.下载winutils的windows版本 How to unlock sharp aquos crystal phone.
Microsoft office for mac. 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,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_HOMEbin 即可。
Winutil Hadoop For Mac Os
再次运行程序，正常执行。
Spark Winutils