Explain what is shuffling in mapreduce?
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Explain how mapreduce works.
Explain what does the conf.setMapper Class do in MapReduce?
What is RecordReader in a Map Reduce?
Explain InputSplit in Hadoop MapReduce?
What is a distributed cache in mapreduce framework?
Define the purpose of the partition function in mapreduce framework
What is the input type/format in MapReduce by default?
What main configuration parameters are specified in mapreduce?
What is heartbeat in hdfs?
Why comparison of types is important for MapReduce?
What is a TaskInstance?
What is the problem with the small file in Hadoop?
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