Search⌘ K
AI Features
Home
Courses
Introduction to Big Data and Hadoop

Testing MapReduce Program

Explore how to test MapReduce programs comprehensively by implementing the Tool interface, running jobs locally or on Hadoop clusters. Understand job configuration, mapper and reducer integration, and output handling to ensure your big data processing works as expected.

We'll cover the following...

Testing MapReduce

So far, we have learned how to write mapper and reducer classes and their corresponding unit tests. But ideally, we want to test our MapReduce job end to end. There are different ways to run a MapReduce job:

  • Using the ToolRunner class to run a MapReduce job ...