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You're reading from  Apache Mahout Essentials

Product typeBook
Published inJun 2015
Reading LevelIntermediate
Publisher
ISBN-139781783554997
Edition1st Edition
Languages
Java
Tools
Mahout
Concepts
Machine Learning
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Author (1)
Jayani Withanawasam
Jayani Withanawasam
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Jayani Withanawasam

Jayani Withanawasam is R&D engineer and a senior software engineer at Zaizi Asia, where she focuses on applying machine learning techniques to provide smart content management solutions. She is currently pursuing an MSc degree in artificial intelligence at the University of Moratuwa, Sri Lanka, and has completed her BE in software engineering (with first class honors) from the University of Westminster, UK. She has more than 6 years of industry experience, and she has worked in areas such as machine learning, natural language processing, and semantic web technologies during her tenure. She is passionate about working with semantic technologies and big data.
Read more about Jayani Withanawasam

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Troubleshooting Hadoop

During the installation process, you might encounter issues related to configuration values, ports, and connectivity problems. Even though it is not possible to provide solutions for each and every potential issue that you might encounter, the following hints will be helpful to troubleshoot effectively and efficiently:

  1. Check the following environment variable values for different logs:

    MAHOUT_LOG_DIR
MAHOUT_LOGFILE

  2. Check the log files at the following location for Hadoop application specific issues:

    [Hadoop installation directory]/logs/user logs

  3. Make sure that hostnames are specified correctly across all the nodes in the cluster:

    Check the /etc/hosts file for correct IP/ host name mapping in all nodes

  4. Check port numbers for accuracy in the configuration files, and check whether you have given hostname:port correctly in all the relevant configuration files.

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Apache Mahout Essentials
Published in: Jun 2015Publisher: ISBN-13: 9781783554997
© 2015 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Jayani Withanawasam

Jayani Withanawasam is R&D engineer and a senior software engineer at Zaizi Asia, where she focuses on applying machine learning techniques to provide smart content management solutions. She is currently pursuing an MSc degree in artificial intelligence at the University of Moratuwa, Sri Lanka, and has completed her BE in software engineering (with first class honors) from the University of Westminster, UK. She has more than 6 years of industry experience, and she has worked in areas such as machine learning, natural language processing, and semantic web technologies during her tenure. She is passionate about working with semantic technologies and big data.
Read more about Jayani Withanawasam

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