EBDH

E-Business Database on Hadoop (demo)

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E-Business demo website

Create rails project:

• http://railsapps.github.io/rails-bootstrap/

• database user and pw: ebdh

• CREATE USER ebdh IDENTIFIED BY 'ebdh'
• GRANT ALL PRIVILEGES ON . TO 'ebdh'@'%';
• rails generate scaffold Books title:string author:string publisher:string publish_date:date price:float amazon_link:string

How to install rails?

• http://rvm.io/

• http://ruby-china.org/wiki/rvm-guide

• \curl -sSL https://get.rvm.io | bash -s stable --rails
• cd EBusinessDemo
• bundle install
• rails s

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Hadoop Environment

How to install Java?

• Ubuntu: http://community.linuxmint.com/tutorial/view/1414
• Fedora: http://www.if-not-true-then-false.com/2010/install-sun-oracle-java-jdk-jre-7-on-fedora-centos-red-hat-rhel/

Database access with Hadoop

• http://blog.cloudera.com/blog/2009/03/database-access-with-hadoop/
• Hadoop has an input format called "DBInputFormat" that allows you to read data from a relational database.