OINK is a C++ application that provdes a hi-level scripting interface to the MR-MPI library which it uses internally. These are three goals of OINK:

(1) To allow MapReduce algorithms which call the MR-MPI library to be written with a minimum of extraneous code, to work with input/output in various forms, and to be chained together and driven via a simple, yet versatile scripting language.
(2) To create an archive of map() and reduce() functions for re-use by different algorithms.
(3) To provide a scripted interface to the lo-level MR-MPI library calls that can speed development/debugging of new algortihms before coding them up in C++ or another language.

OINK has its own manual and doc pages, so further details are not given here.