What is a "reducer" in Hadoop?
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When is it suggested to use a combiner in a MapReduce job?
What is a Distributed Cache in Hadoop?
what happens in textinformat ?
Explain what does the conf.setmapper class do?
What is InputFormat in Hadoop MapReduce?
Explain what is shuffling in mapreduce?
Mention Hadoop core components?
How many numbers of reducers run in Map-Reduce Job?
what is a sequence file in Hadoop?
In Hadoop, which file controls reporting in Hadoop?
How to specify more than one directory as input in the Hadoop MapReduce Program?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
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