I am writing this series to mention some of the recommended reading to understand Hadoop , its architecture, minute details of cluster setup etc.

Understanding Hadoop Cluster Setup and Network – Brad Hedlund, with his expertise in Networks, provide minute details of cluster setup, data exchange mechanisms of a typical Hadoop Cluster Setup.

MongoDB and Hadoop – Webinar by Mike O’Brien,Software Engineer, MongoDB on how MongoDB and Hadoop can be used together , using core MapReduce and Pig and Hive as well.

Please post comments if you have come across some great article/webinar link, which explains things in great details with ease.