Data Modeling ,moving from SQL to NoSQL in the enterprise lecture

Very interesting lecture about data modeling and moving MySQL to NoSQL

Summary
Kenneth M. Anderson shares some of the data modeling issues encountered while transitioning from a relational database to NoSQL.
http://www.infoq.com/presentations/MySQL-NoSQL-Data-Modeling

How To Build Optimal Hadoop Cluster ( Hadoop recommendations)

Preface

Amount of data stored in database/files is growing every day, using this fact there become a need to build cheaper, mainatenable and scalable environments capable of storing  big amounts of data („Big Data“). Conventional RDBMS systems became too expensive and not scalable based on today’s needs, so it is time to use/develop new techinques that will be able to satisfy our needs.

One of the technologies that lead in these directions is Cloud computing. There are different implementation of Cloud computing but we selected Hadoop – MapReduce framework with Apache licence based on Google Map Reduce framework.