Answers

Question and Answer:

  Home  Cloud Computing - MapReduce

⟩ When do reducers play their role in a mapreduce task?

The reducers in a mapreduce job do not begin before all the map jobs are completed. Once all the map jobs are completed the reducers begin copying the intermediate key-value pairs from the mappers. Overall reducers start working as soon as the mappers are ready with key-value pairs.

 226 views

More Questions for you: