Question
What is the difference between TextInputFormat and KeyValueFormat class?
Answers
TextInputFormat: It reads lines of text files and provides the offset of the line as key to the Mapper and actual line as Value to the mapper.
KeyValueInputFormat: Reads text file and parses lines into key, Value pairs. Everything up to the first tab character is sent as key to the Mapper and the remainder of the line is sent as value to the mapper.   Your Comment




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