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Wednesday, February 2, 2011

Finally, success on Hadoop

After days of fighting with the system (due to lack of even basic Linux knowledge), I finally managed to configure Hadoop on a single node and ran the Word Count example which ships along with the software itself. It felt good to see a working example. The results were good.
I hope that this acts as a stepping stone for my further work on hadoop and in my overall research attempt. Must thank Michael Noll for his tutorial at for the help.
My next step is going to be setting up a multi-node cluster.

Tuesday, February 1, 2011

A wonderful tutorial on Hadoop installation for single node

Michael Noll has written an amazing tutorial on installing Hadoop on a single node. The tutorial is titled "Running Hadoop On Ubuntu Linux (Single-Node Cluster)".
It covers every aspect in pretty much detail.

The only point not covered and where I got stuck is when ssh would not start off. Finally, I discovered that there was no SSH server installed. This command
sudo aptitude install openssh-server

got the SSH server installed and lo, everything went on well then.

Access the tutorial at

No more Sun Java on Ubuntu 10.04

Sun Java packages have been dropped from Ubuntu 10.04 LTS from the Multiverse section of Ubuntu archive. Ubuntu team is encouraging users to use OpenJDK instead of Sun JDK/JRE but still if you want to install Sun JDK on your Ubuntu then here is the solution for the same.

perform the following four steps to install the package.
1. Add the Canonical Partner Repository to your apt repositories:

$ sudo add-apt-repository "deb lucid partner"
2. Update the source list

$ sudo apt-get update

3. Install sun-java6-jdk

$ sudo apt-get install sun-java6-jdk

Installing Ubuntu on Windows is So easy

For those of you who want to take that step from the world of windows to Linux, here is panacea at last. Ubuntu 10.x is here.
The best part is, if you have a machine with windows, its a very easy task to install Ubuntu.
Visit for the Windows Installer of Ubuntu. Install this and lo and behold, once your machine restarts, you already have dual booting enabled and you can just click ahead to access your linux installation.