What is Hadoop Streaming? › Category: Hadoop › What is Hadoop Streaming? 0 Vote Up Vote Down Editor">Editor Staff asked 2 years ago What is Hadoop Streaming? 1 Answers 0 Vote Up Vote Down Editor">Editor Staff answered 2 years ago Hadoop streaming is a utility which allows you to create and run map/reduce job. It is a generic API that allows programs written in any languages to be used as Hadoop mapper.