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HADOOP_HOME and hadoop.home.dir are unset
source link: http://www.blogjava.net/yangjunwei/archive/2021/04/19/435856.html
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HADOOP_HOME and hadoop.home.dir are unset
一.问题描述：windows本地调试Hadoop程序时报错错误信息：
其原因是需要在windows本地搭建Hadoop环境，下载winutils文件，并将hadoop-2.8.4包内的bin文件替换，将下载文件中hadoop.dll放到C：\Windows\System32下
二.解决过程如下：
1.下载hadoop，去官网下载对应的hadoop版本，我在linux集群搭建的是hadoop-2.8.4，因此将hadoop-2.8.4下载到windows本地
二.解决过程如下：
1.下载hadoop，去官网下载对应的hadoop版本，我在linux集群搭建的是hadoop-2.8.4，因此将hadoop-2.8.4下载到windows本地
https://www.jianshu.com/p/a65a95108620
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