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Can Reducers talk with each other ?



No, Reducers run in isolation. MapReduce programming model does not allow reducers to communicate with each other.
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  • What are the main components of Mapreduce Job ?
      Main driver class which provides job configuration parameters. Mapper class which must extend org.apache.hadoop.mapredu...
  • TO_CHAR
       This will be used to extract various date formats.     The available date formats as follows.     Syntax: to_char ( date , fo...