What is MapReduce, or MR, all about? You might have heard a lot about this if you have been following technologies on big data for a while. Why do we need to understand it when we are trying to work on Couchbase's view? This is a way of programming, just like object-oriented programming. Since it's an abstract concept, you might find it hard to understand initially. Hence, I suggest you read it a couple of times until you understand it well. It's a concept, and you need to think in terms of MapReduce while developing applications using views to fetch documents. When we write a view in Couchbase to fetch documents from a bucket, we will be writing in the MapReduce format. Hence, understanding MapReduce is very crucial for writing views efficiently.
Nowadays, you might have read and heard a lot about big data, and whenever somebody talks about big data, people think of Hadoop and NoSQL databases. Big data is data that usually has characteristics of 3Vs. What is the...
