Installing Cloudera CDH4 on Ubuntu 12.04 LTS

Presented are some short notes for installing Cloudera CDH4 on Ubuntu 12.04 LTS running as a guest OS on Oracle’s VirtualBox. For those unfamiliar with Cloudera and CDH, CDH is Cloudera’s 100% open source Hadoop distribution. What is documented here is not a complete tutorial, but rather pieces of information to be used in conjunction with the product’s documentation. Use these tips to make the installation of Cloudera on Ubuntu easier.

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Karmic Upgrade – Failing Module Rebuilds

After upgrading one of my desktops from Ubuntu Jaunty 9.04 to Karmic 9.10, I was left with a system that wouldn’t boot. Dynamic Kernel Module Support (DKMS) was not rebuilding the existing NVIDIA and Virtual Box modules that were in place before the upgrade. A scan through the system logs led to the conclusion that the kernel headers were not installed as part of the kernel image upgrade. Continue reading “Karmic Upgrade – Failing Module Rebuilds”

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Cruise and Ubuntu System Wide Environment Settings

I discovered a strange little problem the other day. I just completed my install of ThoughtWorks Cruise on a server running Ubuntu 8.04 LTS. In case you haven’t heard of it, Cruise is a continuous integration and release management system. Everything appeared to be running correctly; so I proceeded to setup a pipeline for an Android project I was working on.

Android uses Ant to build and manage a project outside an IDE such as Eclipse. This looked like a no brainer using Cruise’s <ant> task. I had Ant 1.7.1 installed with the following lines in my server’s /etc/environment file:
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