what is the Hadoop MapReduce APIs contract for a key and value class?
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What happen if the number of the reducer is 0 in MapReduce?
What is Output Format in MapReduce?
What is the next step after Mapper or MapTask?
Explain InputSplit in Hadoop MapReduce?
What is MapReduce in Hadoop?
When is the reducers are started in a MapReduce job?
With the help of two examples name the map and reduce function purpose
Explain what does the conf.setMapper Class do in MapReduce?
what is a Task Tracker in Hadoop?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
In MapReduce Data Flow, when Combiner is called?
Explain task granularity
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