John Weatherford, Lead Developer at Telescope, has been using HBase to support their major campaigns such as American Idol, So you think you can dance, America's Got Talent, McDonald's Monopoly, and many more.
In this talk, A developer’s guide to coprocessors, he will cover all the specifics needed for a java developer to start creating coprocessors. This presentation will start with a brief introduction to what a coprocessor is and why it is useful, specifically describing the difference between observers and endpoints and showing examples of coprocessor implementations. The bulk of the presentation will be a walkthrough of the java development needed to create a coprocessor. An outline of the class structure will be given describing the coprocessor interface and example code will be shown for a simple data manipulation observer and data extraction endpoint. After the code is shown, we will discuss and show the steps needed to run the coprocessor on HBase as well as where to find log data and what errors to look for. Finally, we will show sample calls to show that the entire process works and data is processed and retrieved.
Also John will be presenting at HBaseCon this very topic so please support him in attending this event.