What are the steps involved in MapReduce framework?
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What is the Hadoop MapReduce API contract for a key and value Class?
How many Mappers run for a MapReduce job in Hadoop?
What is shuffleing in mapreduce?
What is the difference between HDFS block and input split?
What is the best way to copy files between HDFS clusters?
what is "map" and what is "reducer" in Hadoop?
What is identity mapper and identity reducer?
What is KeyValueTextInputFormat in Hadoop MapReduce?
In Hadoop what is InputSplit?
Differentiate Reducer and Combiner in Hadoop MapReduce?
Explain what combiners are and when you should use a combiner in a mapreduce job?
What are the fundamental configurations parameters specified in map reduce?
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