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Under my profile and the .bashrc file. I have added several environment variables. Example:

export HADOOP_HOME=/app/hadoop-2.7.3

When I try to run any "hadoop" command I get command not found.

After executing this command "exec bash" I will be able then to run hadoop commands without issues.

The problem I am having that every time I log in to the server I will need to run the exec command to be able to use hadoop, plus there are other users on the server that need to use the application.

How can I update the PATH globally so everyone can use hadoop and any other installed application?

Thank you

  • "command not found" means PATH is wrong, not HADOOP_HOME. – jordanm Oct 22 '18 at 0:51
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Create a file in /etc/profile.d called hadoop.sh.

Add these lines to the file:

export HADOOP_HOME=/app/hadoop-2.7.3
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk
export PATH=$HADOOP_HOME/bin:$PATH

JAVA_HOME also needs to be set in order for Hadoop to function which I've added above assuming you are using Java 1.8.0.

Make the file executable:

chmod +x /etc/profile.d/hadoop.sh

The bin directory for Hadoop will be prepended to everyone's path at login.

  • Need to fix PATH so it includes the original path and not only hadoop's bin! – filbranden Oct 22 '18 at 3:25
  • @FilipeBrandenburger I must have forgotten to copy the entirety when I did it on my test machine! That's a good catch. – Nasir Riley Oct 22 '18 at 5:07

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