Using MRUnit to Develop and Test MapReduce Jobs

By Ravi Karamsetty | August 28, 2014 |

Conceptually, MapReduce jobs are relatively simple. In the map phase, each input record has a function applied to it, resulting in one or more key-value pairs. The reduce phase receives a group of the key-value pairs and performs some function over that group. Testing mappers and reducers should be as easy as testing any other … Continue reading “Using MRUnit to Develop and Test MapReduce Jobs”

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