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linuxubuntuhadoop
Alexis Eggermont
Alexis Eggermont

Reputation: 8155

Ubuntu: hadoop command not found

I am trying to check my installation of hadoop. I did create the environment variables and when I call printenv, I do see my HADOOP_HOME and PATH variables printed and correct (home/hadoop and HADOOP_HOME/bin respectively).

If I go to home/hadoop in the terminal and call ls, I see the hadoop file there. If I try to run it by calling hadoop, it still tells me command not found.

First day on Linux, so there may be a stupid answer to this problem.

Upvotes: 3

Views: 19216

Answers (6)

Nitz
Nitz

Reputation: 81

You must run “hadoop version” command.

If the hadoop setup is fine, then you should see the following result:

Hadoop 2.4.1 
Subversion https://svn.apache.org/repos/asf/hadoop/common -r 1529768 
Compiled by hortonmu on 2013-10-07T06:28Z 
Compiled with protoc 2.5.0
From source with checksum 79e53ce7994d1628b240f09af91e1af4

For installation related guide you can refer here:

Hadoop Environment Setup

Link to my quora answer https://qr.ae/TWngHN

Hope this helps.

Thanks

Upvotes: 1

Abhishek
Abhishek

Reputation: 494

You may be editing the wrong ~/.bashrc file.

Open terminal and run sudo gedit ~/.bashrc and edit these command

export HADOOP_HOME=/usr/local/hadoop
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin

Note: You must not use sudo gedit ~/.bashrc.sh these both work differently on newer OS

Upvotes: 0

Nikhil Vandanapu
Nikhil Vandanapu

Reputation: 529

Enter which hadoop in your terminal. If you see a path as an output, hadoop is set in PATH of your system. If you get something similar to this, usr/bin/which: no hadoop in (/usr/local/hadoop.... you might not have setup everything properly. Modify the /etc/bash.bashrc with export HADOOP_HOME = /path/to/hadoop/folder and add it to PATH using export PATH=$PATH:HADOOP_HOME/bin

Upvotes: 0

chirag
chirag

Reputation: 11

  1. Go to Hadoop-x.x.x/bin folder
  2. check for hadoop folder there
  3. run ./hadoop version

Upvotes: 1

Rajesh N
Rajesh N

Reputation: 2574

HOME DIRECTORY:

/home/hadoop is a home directory created by linux similar to Document and settings in windows.

Open your terminal and type:

ls -l /home/hadoop

Post your result for this command: ls -l /home/hadoop

SETTING GLOBAL PATH:

Go to /home/hadoop and open .bashrc in text editor. Add these lines at the end:

export HADOOP_HOME=/path/to/your/hadoop/installation/folder
export PATH=$PATH:$HADOOP_HOME/bin

Save and exit. Now type, this in your teminal:

echo $PATH
echo $HADOOP_HOME

If these commands shows correct directories, try hadoop command. It should work.

Post your result for these command: echo $PATH and echo $HADOOP_HOME

Upvotes: 5

The Bndr
The Bndr

Reputation: 13394

Your current working directory is probably not part of your path. That is default on linux systems.

If you are in the same directory, where your hadoop file is, run that command with an relative path, like: ./hadoop

Upvotes: 5

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