HDFS- windows向远程服务器写文件出现org.apache.hadoop.security.AccessControlException异常
2020-02-12 07:56
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向HDFS目录中写入文件是有权限控制的，从异常中可以看到，写入需要时root用户，而因为使用windows向远程发起写入请求，用户为xxx，和root用户不符合，所以出现该异常。
解决办法:
在调用FileSystem.get(conf)方法之前，调用 System.setProperty("HADOOP_USER_NAME","root");
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