Map/Reduce Tutorial: "Although the Hadoop framework is implemented in JavaTM, Map/Reduce applications need not be written in Java.
Hadoop Streaming is a utility which allows users to create and run jobs with any executables (e.g. shell utilities) as the mapper and/or the reducer.
Hadoop Pipes is a SWIG- compatible C++ API to implement Map/Reduce applications (non JNITM based)."
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