Map-Reduce is a term that is being heard a lot nowadays. Google re-introduced the term and made it popular (as it was originally introduced by functional programming guys). Hadoop and bigdata has its basis in map-reduce. Here is a simple introduction to map-reduce
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MapReduce is the Google paper that started it all (Map Reduce Paper). It’s a paradigm for writing distributed code inspired by some elements of functional programming. The Google internal implementation is called MapReduce and Hadoop is it’s open-source implementation.
HDFS is an implementation inspired by the Google File System (GFS) to store fil…[Read more]