找不到hadoop安装：必须设置$ HADOOP_HOME或hadoop必须位于路径中

问题描述

所以有一点背景。我一直试图在CentOS 6机器上设置Hive。我遵循了此Youtube视频的说明：

对于我的情况，我使用的是Hadoop-1.1.2和Hive 0.9.0，本视频中标有mnt的所有目录取而代之的是opt，因为这就是我所有的hadoop和hive包都被打开了。

当我到达视频中我实际应该看到的部分时运行Hive通过./hive
弹出这个错误：

 找不到hadoop安装：$ HADOOP_HOME must被设置或hadoop必须在路径
  

我猜我的一个问题是，在哪个目录我必须编辑.profile文件？因为我不明白为什么我们不得不到主目录进行这项更改。此外，如果这有帮助，这是我放在我的/ home / hadoop目录中的.profile文件中。

  export HADOOP_HOME = / opt / hadoop / hadoop 
 export HIVE_HOME = / opt / hadoop / hive $ b $ export PATH = $ HADOOP_HOME / bin：$ HIVE_HOME / bin 
  
 
非常感谢！
解决方案
 /etc/profile.d目录，并在那里创建一个hadoop.sh文件。
  export HADOOP_HOME = / opt / hadoop / hadoop 
 export HIVE_HOME = / opt / hadoop / hive 
 export PATH = $ PATH：$ HADOOP_HOME / bin：$ HIVE_HOME / bin 
  
保存文件后，请确保 
 
 
  chmod + x / etc / profile.d / hadoop.sh 
 source /etc/profile.d/hadoop.sh 
  
这应该照顾它。
 
So a little background. I've been trying to setup Hive on a CentOS 6 machine. I followed the instructions of this Youtube video: http://www.youtube.com/watch?v=L2lSrHsRpOI
For my case, I'm using Hadoop-1.1.2 and Hive 0.9.0, all the directories labeled "mnt" in this video I replaced it with "opt" because that's where all of my hadoop and hive packages have been opened up.
As I reached the portion of the video where I was actually supposed to run Hive via "./hive"this error popped up:
"Cannot find hadoop installation: $HADOOP_HOME must be set or hadoop must be in the path"
I guess one of the questions I have is, in which directory did I have to edit the ".profile" file? because I don't understand why we would have to go to the "home" directory for this change. And also if this helps, this is what I had put down in the ".profile" file in my /home/hadoop directory
export HADOOP_HOME=/opt/hadoop/hadoop
export HIVE_HOME=/opt/hadoop/hive
export PATH=$HADOOP_HOME/bin:$HIVE_HOME/bin
Thank you so much!
 解决方案 
Go to /etc/profile.d directory and create a hadoop.sh file in there with 
export HADOOP_HOME=/opt/hadoop/hadoop
export HIVE_HOME=/opt/hadoop/hive
export PATH=$PATH:$HADOOP_HOME/bin:$HIVE_HOME/bin
After you save the file, make sure to 
chmod +x /etc/profile.d/hadoop.sh
source /etc/profile.d/hadoop.sh
This should take care of it.
                        
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