Advanced and Alternate MapReduce Techniques
Apress eBooks · 2009
T his chapter discusses techniques for handling larger jobs with more complex requirements. In particular, the section on map-side joins covers the case in which the input data is already sorted, and the section on chaining discusses ways of adding additional mapper classes to a job without passing all the job data through the network multiple times. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.