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Apache Hadoop is a freely licensed software framework developed by the Apache Software Foundation and used to develop data-intensive, distributed computing. Hadoop is designed to scale from a single machine up to thousands of computers. A central Hadoop concept is that errors are handled at the application layer, versus depending on hardware for reliability.
Hadoop was inspired by Google MapReduce and Google File System papers. It is a project developed with top-level specifications, and a community of programmers worldwide contributed to the program using Java language. Yahoo Inc. has been a major Hadoop supporter.
Doug Cutting is credited with the creation of Hadoop, which he named for his son’s toy elephant. Cutting’s original goal was to support the expansion of the Apache Nutch search engine project.