Map / Reduce – A visual explanation - Ayende @ RahienMap/Reduce is a term commonly thrown about these days, in essence, it is just a way to take a big task and divide it into discrete tasks that can be done in parallel. A common use case for Map/Reduce is in document database, which is why I found myself thinking deeply about this. Let us say that we have a set of documents with the following form: { "type": "post", "name": "Raven's Map/Reduce funct
