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
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
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
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]/
Browse through the artifacts
yum search hadoop yum --disablerepo "*" --enablerepo "bigtop-0.3.0-incubating" list available
Install the full Hadoop stack (or parts of it)
sudo yum install hadoop\* flume\* mahout\* oozie\* whirr\* hbase\*
SLES 11, OpenSUSE
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
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
Browse through the artifacts
zypper search hadoop
Install the full Hadoop stack (or parts of it)
sudo zypper install hadoop\* flume\* mahout\* oozie\* whirr\*
Ubuntu
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 -
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
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
Update the apt cache
sudo apt-get update
Browse through the artifacts
apt-cache search hadoop
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
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:
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
Format the namenode
sudo -u hdfs hadoop namenode -format
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 $i start ; done
Once your basic cluster is up and running it is a good idea to create a home directory on the HDFS:
sudo -u hdfs hadoop fs -mkdir /user/$USER sudo -u hdfs hadoop fs -chown $USER /user/$USER
Enjoy your cluster
hadoop fs -lsr / hadoop jar /usr/lib/hadoop/hadoop-examples.jar pi 10 1000
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
- 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 theBigtop Make Filefor 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
- https://hadoop.apache.org/common/docs/r1.0.1/ for Bigtop 0.3
- 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).