This information is primarily sourced (read heavily copied and modified) from: getblueshift.com and references stackoverflow.com.  This also assumes you have homebrew and Java 1.7+ installed. When I did this it installed Hadoop 2.7.3 Steps: 1.  Set JAVA_HOME in your bash profile.   $ export JAVA_HOME=$(/usr/libexec/java_home) 2.  Install hadoop with brew, as of this writing it will download and […]