Setting up hadoop tips

How to Set Up Hadoop Home to use hadoop command directly:

vim ~/.profile

export HADOOP_HOME=/usr/local/bin/hadoop-2.7.1;

export PATH=$PATH:${HADOOP_HOME}/bin;

alias hstart="/usr/local/bin/hadoop-2.7.1/sbin/start-dfs.sh;/usr/local/bin/hadoop-2.7.1/sbin/start-yarn.sh";
alias hstop="/usr/local/bin/hadoop-2.7.1/sbin/stop-yarn.sh;/usr/local/bin/hadoop-2.7.1/sbin/stop-dfs.sh";

Why have to source ~/.profile every time? 

—> since ~/.bash_profile exists.

Solution:

echo "source ~/.profile" >> .bash_profile