I read the MapReduce paper recently and wanted to try out the internal working by building it from scratch (at least a minimal version). Hope it helps someone trying to reproduce the same paper in future

You can read more about it in newsletter: https://buildx.substack.com/p/lets-build-mapreduce-from-scratch

Github repo: https://github.com/venkat1017/mapreduce-go/tree/main/mapreduce-go