May 2014
Beginner to intermediate
358 pages
12h 17m
English
Content preview from Geographical Information Systems
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A Quick Introduction to MapReduce
MapReduce is one of the main software frameworks for distributed
processing (Dean and Ghemawat 2004). This framework is able to process
massive amounts of data and works by dividing the processing task into
two phases: map and reduce, for which the user provides two functions
named map and reduce. These functions have key-value pairs as inputs and
outputs which have the following general form:
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.