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What are all the parameters that need to be specified before a MR operation?

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The parameters that need to be specified for the Hadoop MR framework are:

  • The input address of the input file(s) in the HDFS address.
  • The output address of the output file(s) in the HDFS address.
  • The format of the input.
  • The format of the output.
  • The class which contains the Map function. 
  • The class which contains the Reducer function.
  • The JAR file that wraps all of the mapper, reducer and driver classes up. 

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