How to install Hadoop distribution from Bigtop
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Introduction

Installing Bigtop Hadoop distribution artifacts lets you have an up and running Hadoop cluster complete with
various Hadoop ecosystem projects in just a few minutes. Be it a single node pseudo-distributed
configuration, or a fully distributed cluster, just make sure you install the packages, install the JDK,
format the namenode and have fun! If Bigtop is not supported on your OS, you can install one of the supported 64-bit OSes
on a virtual machine. There is known issues with 32-bit OSes.

Getting the packages onto your box

CentOS 5, CentOS 6, Fedora 15, RHEL5, RHEL6

  1. Make sure to grab the repo file:
    wget -O /etc/yum.repos.d/bigtop.repo http://www.apache.org/dist/bigtop/stable/repos/[centos5|centos6|fedora15|fedora16]/bigtop.repo
    
  2. This step is optional, but recommended: enable the mirror that is closest to you (uncomment one and only one of the baseurl lines and remove the mirrorlist line). If the downloads are too slow, try another mirror
    sudo vi /etc/yum.repos.d/bigtop.repo
    
  3. Note: Since 0.3.0 is currently available only from the archives use:
    baseurl=http://archive.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubating/repos/[centos5|centos6|fedora15|fedora16]/
    
  4. Browse through the artifacts
    yum search hadoop
    yum --disablerepo "*" --enablerepo "bigtop-0.3.0-incubating" list available
    
  5. Install the full Hadoop stack (or parts of it)
    sudo yum install hadoop\* flume\* mahout\* oozie\* whirr\* hbase\*
    

SLES 11, OpenSUSE

  1. Make sure to grab the repo file:
    wget -O  http://www.apache.org/dist/incubator/bigtop/stable/repos/suse/bigtop.repo
    mv bigtop.repo  /etc/zypp/repos.d/bigtop.repo
    
  2. Enable the mirror that is closest to you (uncomment one and only one of the baseurl lines). If the downloads are too slow, try another mirror
    As root:  vi /etc/zypp/repos.d/bigtop.repo
    
  3. Browse through the artifacts
    zypper search hadoop
    
  4. Install the full Hadoop stack (or parts of it)
    sudo zypper install hadoop\* flume\* mahout\* oozie\* whirr\*
    

Ubuntu

  1. Install the Apache Bigtop GPG key
    wget -O- http://www.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubating/repos/GPG-KEY-bigtop | sudo apt-key add -
    
  2. Make sure to grab the repo file:
    sudo wget -O /etc/apt/sources.list.d/bigtop.list http://www.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubating/repos/ubuntu/bigtop.list
    
  3. Enable the mirror that is closest to you (uncomment one and only one pair of deb/deb-src lines). If the downloads are too slow, try another mirror
    sudo vi /etc/apt/sources.list.d/bigtop.list
    
  4. Update the apt cache
    sudo apt-get update
    
  5. Browse through the artifacts
    apt-cache search hadoop
    
  6. Make sure that you have the latest JDK installed on your system as well. You can either get it from the official Oracle website (http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u29-download-513648.html) or follow the advice given by your Linux distribution. If your JDK is installed in a non-standard location, make sure to add the line below to the /etc/default/hadoop file
    export JAVA_HOME=XXXX
    
  7. Install the full Hadoop stack (or parts of it)
    sudo apt-get install hadoop\* flume-* mahout\* oozie\* whirr-*
    

Running Hadoop

After installing Hadoop packages onto your Linux box, make sure that:

  1. You have the latest JDK installed on your system as well. You can either get it from the official Oracle website (http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u29-download-513648.html) or follow the advice given by your Linux distribution (e.g. some Debian based Linux distributions have JDK packaged as part of their extended set of packages). If your JDK is installed in a non-standard location, make sure to add the line below to the /etc/default/hadoop file
    export JAVA_HOME=XXXX
    
  2. Format the namenode
    sudo -u hdfs hadoop namenode -format
    
  3. Start the necessary Hadoop services. E.g. for the pseudo distributed Hadoop installation you can simply do:
    for i in hadoop-namenode hadoop-datanode hadoop-jobtracker hadoop-tasktracker ; do sudo service $i start ; done
    
  4. Once your basic cluster is up and running it is a good idea to create a home directory on the HDFS:
    sudo -u hdfs hadoop fs -mkdir /user/$USER
    sudo -u hdfs hadoop fs -chown $USER /user/$USER
    
  5. Enjoy your cluster
    hadoop fs -lsr /
    hadoop jar /usr/lib/hadoop/hadoop-examples.jar pi 10 1000
    
  6. If you are using Amazon AWS it is important the IP address in /etc/hostname matches the Private IP Address in the AWS Management Console. If the addresses do not match Map Reduce programs will not complete.

    ubuntu@ip-10-224-113-68:~$ cat /etc/hostname
    ip-10-224-113-68
    
  7. If the IP address in /etc/hostname does not match then open the hostname file in a text editor, change and reboot

Running Hadoop Components

Here are step-by-step instructions on running Hadoop Components!

One of the advantages of Bigtop is the ease of installation of the different Hadoop Components without having to hunt for a specific Hadoop Component distribution and matching it with a specific Hadoop version.

Please visit the link above to run some easy examples from the Bigtop distribution !

Provided at the link above are examples to run Hadoop 1.0.1 and nine other components from the Hadoop ecosystem (hive/hbase/zookeeper/pig/sqoop/oozie/mahout/whirr and flume).

See the

Bigtop Make File

for a list of Hadoop components , officially available from the Bigtop distribution.

Where to go from here

It is highly recommended that you read documentation provided by the Hadoop project itself

  1. https://hadoop.apache.org/common/docs/r1.0.1/ for Bigtop 0.3
  2. or, http://hadoop.apache.org/common/docs/r0.20.205.0/) Bigtop 0.2

and that you browse through the Puppet deployment code that is shipped as part of the Bigtop release (bigtop-deploy/puppet/modules, bigtop-deploy/puppet/manifests).

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