How to create a custom key and custom value in MapReduce Job?
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How to get the single file as the output from MapReduce Job?
What is difference between an input split and hdfs block?
Explain InputSplit in Hadoop MapReduce?
What happens if the quantity of the reducer is 0 in mapreduce?
What do sorting and shuffling do?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
how Hadoop is different from other data processing tools?
What is a "map" in Hadoop?
When is the reducers are started in a MapReduce job?
Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
What are the data components used by Hadoop?
What is a MapReduce Combiner?
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