Using Mahout with external Hadoop 

You can use Apache Mahout with external Hadoop systems and DataStax Enterprise.

Apache Mahout is a Hadoop component that offers machine learning libraries. You can use Apache Mahout with external Hadoop systems and DataStax Enterprise.

If Mahout is installed to its default location of /usr/lib/mahout, the byoh-env.sh file is already configured correctly. If Mahout is installed in a different location, open byoh-env.sh in a text editor and set MAHOUT_HOME to the correct location of Mahout.

export MAHOUT_HOME="/usr/local/lib/mahout"