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Explain "Shuffle & Sort" phase and "Reducer Phase" in Map Reduce.
written 6.7 years ago by gravatar for swatisharma swatisharma • 1.4k modified 5.6 years ago by gravatar for prashantsaini prashantsaini • 0
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written 6.7 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 6.7 years ago

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  • In map phase the task tracker performs the computation on local data and output is generated.

  • The output is called as intermediate results and are stored on temporary local storage.

  • After the map phase is over, all the intermediate values for a given intermediate key are combined together into a …

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