What is Text Input Format?
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What is the need of key-value pair to process the data in MapReduce?
Compare Pig vs Hive vs Hadoop MapReduce?
What do you mean by data locality?
Explain the Reducer's reduce phase?
What is KeyValueTextInputFormat in Hadoop MapReduce?
What is the difference between an RDBMS and Hadoop?
What is a IdentityMapper and IdentityReducer in MapReduce ?
How to set which framework would be used to run mapreduce program?
What are ‘reduces’?
Mention what is the hadoop mapreduce apis contract for a key and value class?
What is the difference between Job and Task in MapReduce?
what daemons run on a master node and slave nodes?
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