Intro: In this article, I will describe the required steps for setting up a distributed, multi-node Apache Hadoop cluster backed by the Hadoop Distributed File System (HDFS), running on Ubuntu Linux. I am using nano as the text editor for this article but you can use any other text-editor like vi, sublime or atom for doing the same I suggest you set up hadoop on single node before directly going for multi node as it will be easier to debug any errors. I have explained about how to setup single node hadoop on ubuntu ...

On a starting note : I am assuming that you have a fresh Ubuntu install on your system as this will cut down a lot of frustration trying to debug why Hadoop is not running. I am using nano as the text editor for this article but you can use any other text-editor like vi, sublime or atom for doing the same Next article : Install Hadoop Multi Node 1.0.3 on Ubuntu 14.04.2 ...

Configuring ROS If you have not installed ROS, I have written a short guide describing the process. It can be found here found here Install ROS - Jade on Ubuntu 14.10 The first step is to check whether the environment variables for ROS are setup properly Do a {% highlight bash %} tasdik@Acer:~$ export | grep ROS {% endhighlight %} Look for ROS_ROOT and ROS_PACKAGE_PATH whether they are set. It should look something like this ...

What the heck is ROS anyway : Robot Operating System (ROS) is a collection of software frameworks for robot software development, providing operating system-like functionality on a heterogeneous computer cluster. So in layman terms, it just helps us build robot applications. Previous post on ROS : Configuring ROS - Jade on Ubuntu 14.10 Note : ROS Jade ONLY supports Trusty (14.04), Utopic (14.10) and Vivid (15.04) for debian packages. If you are on any other version of Ubuntu or have a different flavor of linux installed, I suggest you head over to wiki.ros.org. ...

What do we need? The two most common tools for this are the Apache and nginx servers. Notes: You’ll need to edit a few system configuration files. If you’re uncomfortable with vim, replace vim with nano, or gedit in the following commands. For example, sudo vim will become sudo -H gedit or sudo nano. Once you’re done setting it up, have a look at How to avoid using sudo when working in /var/www? A more detailed guide is available from the Ubuntu LTS Server Guide. ...