What is a "reducer" in Hadoop?
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What are ‘reduces’?
A number of combiners can be changed or not in MapReduce?
what is NameNode in Hadoop?
What are the advantages of using mapreduce with hadoop?
Explain about the basic parameters of mapper and reducer function
Explain the Reducer's reduce phase?
What is Mapper in Hadoop MapReduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
Where is Mapper output stored?
What is the need of key-value pair to process the data in MapReduce?
What is shuffling in mapreduce?
What is LazyOutputFormat in MapReduce?
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