This book is compact and intense but is an insightful and powerful demonstration as to how a problem may be decomposed to fit the MapReduce paradigm. Equally important, it describes the types of problem that are not suited to decomposition as MapReduce jobs. It covers in detail the use of MapReduce in text indexing, graph algorithms, and expectation maximization, but the techniques described could easily be applied to a wide range of applications. I was able to turn the pseudo code snippets, together with Hadoop: The Definitive Guide, into working examples in a relatively short time.For me, this book filled in the blanks with respect to how to apply MapReduce to my own algorithms and data.
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