$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install & Getting Started With Apache Hadoop Database for Linux Kubuntu 13.04 Raring Desktop

May 22, 2013 | By Duchateaux.

Install Hadoop for Kubuntu 13.04 Raring 32/64-bit

Hi! The Tutorial shows you Step-by-Step How to Install and Getting-Started with Apache Hadoop/Map-Reduce vanilla in Pseudo-Distributed mode on Linux Kubuntu 13.04 Raring i386/amd64 Desktop.

The Guide Describe a System-Wide Setup with Root Privileges but you Can Easily Convert the Procedure to a Local One.

The Contents and Details are Expressly Essentials to Give Focus Only to the Essentials Instructions and Commands.

Install Hadoop for Kubuntu 13.04 Raring - Featured

  1. Download Latest Apache Hadoop Stable Release:

    Apache Hadoop Binary tar.gz

  2. Right-Click on Archive > Open with Ark

    Then Extract Into /tmp.

    KDE4 Apache Hadoop Stable tar.gz Extraction

  3. Open Terminal Window
    (Press “Enter” to Execute Commands)

    Linux Kubuntu Open Terminal

    In case first see: Terminal QuickStart Guide.

  4. Relocate Apache Hadoop Directory

    sudo su

    If Got “User is Not in Sudoers file” then see: How to Enable sudo

    mv /tmp/hadoop* /usr/local/
    ln -s /usr/local/hadoop* /usr/local/hadoop
    mkdir /usr/local/hadoop/tmp
    sudo chown -R root:root /usr/local/hadoop*

  5. How to Install Oracle Official Java JDK on Kubuntu

    Install Oracle JDK for Kubuntu

  6. Set JAVA_HOME in Hadoop Env File

    nano /usr/local/hadoop/conf/hadoop-env.sh

    Inserts:

    /nexport JAVA_HOME=/usr/lib/jvm/<oracleJdkVersion>

    Ctrl+x to Save & Exit :)

  7. Configuration for Pseudo-Distributed mode

    nano /usr/local/hadoop/conf/core-site.xml

    The Content Should Look Like:

    <?xml version=”1.0″?>
    <?xml-stylesheet type=”text/xsl” href=”configuration.xsl”?>
    <configuration>
    <property>
    <name>hadoop.tmp.dir</name>
    <value>/usr/local/hadoop/tmp</value>
    </property>
    <property>
    <name>fs.default.name</name>
    <value>hdfs://localhost:8020</value>
    </property>
    </configuration>

    Next:

    nano /usr/local/hadoop/conf/hdfs-site.xml

    The Content Should Look Like:

    <?xml version=”1.0″?>
    <?xml-stylesheet type=”text/xsl” href=”configuration.xsl”?>
    <configuration>
    <property>
    <name>dfs.replication</name>
    <value>1</value>
    </property>
    <property>
    <!– specify this so that running ‘hdfs namenode -format’
    formats the right dir –>
    <name>dfs.name.dir</name>
    <value>/usr/local/hadoop/cache/hadoop/dfs/name</value>
    </property>
    </configuration>

    Latest:

    nano /usr/local/hadoop/conf/mapred-site.xml

    The Content Should Look Like:

    <?xml version=”1.0″?>
    <?xml-stylesheet type=”text/xsl” href=”configuration.xsl”?>
    <configuration>
    <property>
    <name>mapred.job.tracker</name>
    <value>localhost:8021</value>
    </property>
    </configuration>

  8. SetUp Path & Environment

    su <myuser>
    cd  
    nano .bashrc

    Inserts:

    HADOOP_HOME=/usr/local/hadoop
    /nexport PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

    The JAVA_HOME is Set Following Oracle Java JDK6+ Installation Version…

    Then Load New Setup:

    source $HOME/.bashrc

  9. SetUp Needed Local SSH Connection

    sudo systemctl start ssh

    Generate SSH Keys to Access:

    ssh-keygen -b 2048 -t rsa
    echo "$(cat ~/.ssh/id_rsa.pub)" > ~/.ssh/authorized_keys

    Testing Connection:

    ssh 127.0.0.1

  10. Formatting HDFS

    hdfs namenode -format

    Terminal Apache Hadoop HDFS Formatting Success

  11. Starting Up Hadoop Database

    start-all.sh

  12. Apache Hadoop Database Quick Start Guide

    Hadoop MapReduce Quick Start