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What are the advantages of using map side join in mapreduce?
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In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
What is the difference between Job and Task in MapReduce?
In Hadoop, which file controls reporting in Hadoop?
what is "map" and what is "reducer" in Hadoop?
What is a mapreduce algorithm?
What is identity mapper and reducer? In which cases can we use them?
A number of combiners can be changed or not in MapReduce?
Can there be no Reducer?
What is the data storage component used by Hadoop?
What is LazyOutputFormat in MapReduce?
Explain the difference between a MapReduce InputSplit and HDFS block?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
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