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How to create a custom key and custom value in MapReduce Job?
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What is the core of the job in MapReduce framework?
What are ‘maps’ and ‘reduces’?
Is it mandatory to set input and output type/format in MapReduce?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
How to create custom key and custom value in MapReduce Job?
Is it possible to rename the output file?
What is the difference between an RDBMS and Hadoop?
What comes in Hadoop 2.0 and MapReduce V2 YARN
In MapReduce, ideally how many mappers should be configured on a slave?
What is LazyOutputFormat in MapReduce?
Can there be no Reducer?
How to set which framework would be used to run mapreduce program?
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