Featured Author

Jon Allen
Instructional Designer, MapR

Jon is an instructional designer at MapR technologies, where he writes and develops educational materials on Hadoop administration and ecosystem components. Prior to joining MapR, Jon worked as an instructional designer, and LMS manager for over 20 years, in an enterprise environment at PayPal, for the US Dept and Education, and in higher education at Purdue University and the University of Delaware.

Author's Posts

Posted on November 26, 2014 by Jon Allen

Welcome to the MapR Whiteboard Walkthrough. My name is John and I'm the author of the cluster administration course that you'll find at training.mapr.com. I'm here to talk to you a about the CLDB, or the container location database. Over the next few minutes, I'll give you a quick definition of the CLDB, an overview, and talk a little bit more about what's inside the CLDB. At the end of this video you should be able to define the function of the CLDB in a MapR cluster and also describe how it differs from the namenode in standard Hadoop.

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