21. Configure, Start, and Validate Apache Mahout

Replace your configuration after upgrading. Copy /etc/mahout/conf from the template to the conf directory in mahout hosts.

To validate Apache Mahout:

  1. Create a test user:

    hdfs dfs -put /tmp/sample-test.txt /user/testuser
  2. Set up mahout to convert the plain text file sample-test.txt into a sequence file that is in the output directory mahouttest.

    mahout seqdirectory --input /user/testuser/sample-test.txt --output /user/ testuser/mahouttest --charset utf-8

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