What is Apache Ambari?

Apache Ambari is a web application that manages Big Data clusters. It…

what is apache ambariApache Ambari is a web application that manages Big Data clusters. It allows to control the variety of metrics such as disk, network and CPU usages on hosts, number of components alive, hosts states and many other specific indicators.

MapReduce explained

MapReduce is an algorithm to process large amounts of data very quickly.…

MapReduce is an algorithm to process large amounts of data very quickly. It splits data into pieces, gives one piece to one computer, the computers do their counting jobs in parallel, then the algorithm gathers and summarizes the results.