Modified

environment variable for the daemon can be modified in the following files

• hadoop-env.sh
• yarn-env.sh
• mapred-env.sh

hadoop-user-functions.sh allows for advanced users to override some shell functionality

~/.hadooprc stores the personal environment for an individual user. It is processed after the hadoop-env.sh and hadoop-user-functions.sh files and can contain the same settings.

Get

From the command line:

hadoop envvars