What is the use of reducer in Hadoop?

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Tags

  1. #generate
  2. #process
  3. #computation
  4. #takes
  5. #final
  6. #aggregation
  7. #usually
  8. #mapper
  9. #hadoop
  10. #stored
  11. #value
  12. #which
  13. #intermediate
  14. #summation
  15. #output
  16. #reducer