Implementation of the MapReduce framework from scratch in C++ using gRPC & protocol buffers for communicaton between nodes.

I referenced the async grpc (https://grpc.io/docs/languages/cpp/async/) documentation heavily to implement the gRPC boilerplate in worker.h and master.h.

Please symbolically link the input files so they are in the same directory as the binary. This is done in my cmakelists by default but it only considers testdata_1.txt, testdata_2.txt, testdata_3.txt. If you would like to add other test files, please add them in the camke configuration.

threadpool.h contains the custom thread pool I wrote which allows for tasks to execute concurrently (as required by MapReduce obviously).

I wrote a couple unit tests which can be found in testMapReduce.py. If I had more time, I would flesh out a more comprehensive test suite.