November 2010
Intermediate to advanced
336 pages
11h 16m
English
This chapter covers
One frequent complaint about MapReduce is that it’s difficult to program. When you first think through a data processing task, you may think about it in terms of data flow operations, such as loops and filters. However, as you implement the program in MapReduce, you’ll have to think at the level of mapper and reducer functions and job chaining. Certain functions that are treated as first-class operations in higher-level languages become nontrivial to implement in MapReduce, as ...
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