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What is MapReduce in Hadoop?
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What is the function of mapreducer partitioner?
how can you debug Hadoop code?
what are the most common input formats defined in Hadoop?
What is the sequence of execution of map, reduce, recordreader, split, combiner, partitioner?
Explain what is distributed cache in mapreduce framework?
What is the use of InputFormat in MapReduce process?
Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?
What is the default input type in MapReduce?
What is Mapper in Hadoop MapReduce?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
In MapReduce Data Flow, when Combiner is called?
Is it mandatory to set input and output type/format in MapReduce?
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