Configure, Start, and Validate Apache Mahout
Before you can upgrade Apache Mahout, you must have first upgraded your HDP components to the latest version (in this case, 2.4.0). This section assumes that you have already upgraded your components for HDP 2.4.0. If you have not already completed these steps, return to Getting Ready to Upgrade and Upgrade 1.3 Components for instructions on how to upgrade your HDP components to 2.4.0.
Upgrade Mahout. On the Mahout client machines, run the following command:
For RHEL/CentOS/Oracle Linux:
yum upgrade mahoutFor SLES:
zypper remove mahoutzypper se -s mahoutYou should see Mahout in the output.
Install Mahout:
zypper up mahout
For Ubuntu:
apt-get install mahout
Replace your configuration after upgrading. Copy /etc/mahout/conf from the template to the conf directory in mahout hosts.
To validate mahout:
Create a test user:
hadoop dfs -put /tmp/sample-test.txt /user/testuserSet 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