Video: Map Reduce in Plain English

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In this video, the Rafael Coss, manager Big Data Enablement for IBM describes how MapReduce works in plain English.

MapReduce is a framework for processing embarrassingly parallel problems across huge datasets using a large number of computers (nodes), collectively referred to as a cluster (if all nodes are on the same local network and use similar hardware) or a grid (if the nodes are shared across geographically and administratively distributed systems, and use more heterogenous hardware). Computational processing can occur on data stored either in a filesystem (unstructured) or in a database (structured).

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