This document provides a simple example of using MapReduce to process data without Hadoop by streaming a mapper that prints keys from an input file into a sort command and then into a reducer to combine adjacent lines, suggesting MapReduce can be used simply for some tasks without Hadoop. It also briefly mentions Elastic MapReduce as an alternative Hadoop implementation without complex configuration.

1. MapReduce for idiots
(like me)

2. You don’t need it
(probably)

3. Optimizes out seeks

4. Streaming is simple
mapper is print “12345 data”;
reducer combines adjacent lines with the same key
in bash:
./mapper.php < input.txt | sort | ./reducer.php > output.txt

5. Elastic MapReduce
Hadoop without the blood-sacrifices

6. Muhahahahahahahahahaha!