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Why Mapreduce output written in local disk?
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For a job in Hadoop, is it possible to change the number of mappers to be created?
What are the configuration parameters in the 'MapReduce' program?
What is the difference between Job and Task in MapReduce?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
Clarify what is shuffling in map reduce?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
What is the role of recordreader in hadoop mapreduce?
What is optimal size of a file for distributed cache?
How do ‘map’ and ‘reduce’ work?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
What is the inputsplit in map reduce software?
How does fault tolerance work in mapreduce?
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