What is the purpose of textinputformat?
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Explain the process of spilling in MapReduce?
What combiners is and when you should use a combiner in a MapReduce Job?
How to set the number of reducers?
what are the three modes in which Hadoop can be run?
Compare Pig vs Hive vs Hadoop MapReduce?
How to create custom key and custom value in MapReduce Job?
What is a combiner and where you should use it?
Is there any point of learning mapreduce, then?
what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
What is InputFormat in Hadoop MapReduce?
What is identity mapper and chain mapper?
With the help of two examples name the map and reduce function purpose
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