Google introduced the MapReduce algorithm to perform massively parallel processing of very large data sets using clusters of commodity hardware. MapReduce is a core Google technology and key to ...

Originally the MapReduce algorithm was essentially hardwired into the guts of Hadoop’s cluster management infrastructure. It was a package deal: big data pioneers had to take the bitter with the ...

The general MapReduce concept is simple: The "map" step partitions the data and distributes it to worker processes, which may run on remote hosts. The outputs of the parallelized computations are ...