What is Map Reduce? First of all, this is an advanced topic, however we need to be aware of it. In today’s world, we know that there are huge volumes of data. Enter the MapReduce programming model. Initially used by Google for analyzing its search results, MapReduce gained massive popularity due to its ability to split and process terabytes of data in parallel, achieving quicker results.

MapReduce is a programming model or pattern within the Hadoop framework that is used to access big data stored in the Hadoop File System (HDFS). It is a core component, integral to the functioning of the Hadoop framework.