Building Mahout from source¶
- Java JDK 1.7
- Apache Maven 3.3.3
Getting the source code¶
Checkout the sources from the Mahout GitHub repository either via
git clone firstname.lastname@example.org:apache/mahout.git
git clone https://github.com/apache/mahout.git
Mahout code depends on hadoop-client artifact, with the default version 2.4.1. To build Mahout against to a different hadoop version, hadoop.version property should be set accordingly and passed to the build command. Hadoop1 clients would additionally require hadoop1 profile to be activated.
The build lifecycle is illustrated below.
Compile Mahout using standard maven commands
# With hadoop-2.4.1 dependency mvn clean compile # With hadoop-1.2.1 dependency mvn -Phadoop1 -Dhadoop.version=1.2.1 clean compile
Mahout has an extensive test suite which takes some time to run. If you just want to build Mahout, skip the tests like this
# With hadoop-2.4.1 dependency mvn -DskipTests=true clean package # With hadoop-1.2.1 dependency mvn -Phadoop1 -Dhadoop.version=1.2.1 -DskipTests=true clean package
In order to add mahout artifact to your local repository, run
# With hadoop-2.4.1 dependency mvn clean install # With hadoop-1.2.1 dependency mvn -Phadoop1 -Dhadoop.version=1.2.1 clean install