Thanks for the link, but it hasn't helped answer my original question - that Sort.java seems to use IdentityMapper and IdentityReducer. Perhaps it is the Sort.java that is used when executing the below command, but I can't figure out what it actually uses for the mapper and reducer. It's entirely possible I'm just missing something obvious.
I'm interested in seeing how the map and reduce fits into sorting with the following command: $ hadoop jar hadoop-*-examples.jar sort input output I'd appreciate it if someone could explain what mappers/reducers are used in that above command (link to the implementation of whatever sort they use and how it fits into MapReduce) Thanks. -Sean
