This implementation is intended for illustration purposes only and the examples lack exception handling acceptable for production systems. Beyond showcasing an implementation of the MapReduce concept, ...

You are going to write some MapReduce jobs on the remarkable trees of Paris using this dataset. Download the file and put it in your HDFS home directory. Remember to ...

mr: WordCount example from here. mr-caps: Filter: Only count words that appear in all uppercase. mr-len: Max-Aggregation: For each letter, find the longest word that starts with that letter.

When your data and work grow, and you still want to produce results in a timely manner, you start to think big. Your one beefy server reaches its limits. You need a way to spread your work across many ...