June 2017
Beginner to intermediate
349 pages
8h 34m
English
Content preview from Agile Data Science 2.0Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Appendix A. Manual Installation
In this appendix, we cover the details of installing the tools for the stack used in this book.
Installing Hadoop
You can download the latest version of Hadoop from the Apache Hadoop downloads page. At the time of writing, the latest Hadoop was 2.7.3, but this will probably have changed by the time you’re reading this.
A recipe for a headless install of Hadoop is available in manual_install.sh. In addition to
downloading and unpackaging Hadoop, we also need to set up our Hadoop
environment variables (HADOOP_HOME,
HADOOP_CLASSPATH, and HADOOP_CONF_DIR), and we need to put Hadoop’s
executables in our PATH. First, set up
a PROJECT_HOME variable to help find
the right paths. You will need to set this yourself by editing your
.bash_profile file:
exportPROJECT_HOME=/Users/rjurney/Software/Agile_Data_Code_2
Now we can set up our environment directly. Here is the relevant section of manual_install.sh:
# May need to update this link... see http://hadoop.apache.org/releases.html curl -Lko /tmp/hadoop-2.7.3.tar.gz \ http://apache.osuosl.org/hadoop/common/hadoop-2.7.3/hadoop-2.7.3.tar.gz mkdir hadoop tar -xvf /tmp/hadoop-2.7.3.tar.gz -C hadoop --strip-components=1 echo '# Hadoop environment setup' >> ~/.bash_profile export HADOOP_HOME=$PROJECT_HOME/hadoop echo 'export HADOOP_HOME=$PROJECT_HOME/hadoop' >> ~/.bash_profile export PATH=$PATH:$HADOOP_HOME/bin echo 'export PATH=$PATH:$HADOOP_HOME/bin' >> ~/.bash_profile export HADOOP_CLASSPATH=$(hadoop classpath) echo 'export ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.