hadoop fs -put命令 [英] hadoop fs -put command

问题描述

我使用Cloudera CDH存储库在CentOS上构建了单节点Hadoop环境。当我想将本地文件复制到HDFS时，我使用了命令：

$ p $ sudo -u hdfs hadoop fs -put / root /MyHadoop/file1.txt /

但是，结果令我郁闷：

  put：'/root/MyHadoop/file1.txt'：没有这样的文件或目录
  

我确定这个档案确实存在。

请帮助我，谢谢！

解决方案 / （在你的本地硬盘）？通常你不会。
您必须将 file1.txt 复制到 hdfs 用户具有读取权限的地方。

Try：

  cp /root/MyHadoop/file1.txt / tmp 
 chown hdfs：hdfs /tmp/file1.txt 
 sudo -u hdfs hadoop fs -put /tmp/file1.txt / 
  

---编辑：

请看更清洁的罗马尼基琴科的回答。

I have constructed a single-node Hadoop environment on CentOS using the Cloudera CDH repository. When I want to copy a local file to HDFS, I used the command:

sudo -u hdfs hadoop fs -put /root/MyHadoop/file1.txt /

But,the result depressed me:

put: '/root/MyHadoop/file1.txt': No such file or directory

I'm sure this file does exist.

Please help me,Thanks!

解决方案

As user hdfs, do you have access rights to /root/ (in your local hdd)?. Usually you don't. You must copy file1.txt to a place where hdfs user has read rights.

Try:

cp /root/MyHadoop/file1.txt /tmp
chown hdfs:hdfs /tmp/file1.txt
sudo -u hdfs hadoop fs -put /tmp/file1.txt /

--- edit:

Take a look at the cleaner roman-nikitchenko's answer bellow.

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