Define the Use of MapReduce?
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What is a MapReduce Combiner?
How to set mappers and reducers for MapReduce jobs?
How can we control particular key should go in a specific reducer?
what daemons run on a master node and slave nodes?
How much space will the split occupy in Mapreduce?
What is Hadoop Map Reduce ?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
What is a RecordReader in Hadoop MapReduce?
How to write a custom partitioner for a Hadoop MapReduce job?
What is SequenceFileInputFormat in Hadoop MapReduce?
Explain what combiners are and when you should use a combiner in a mapreduce job?
What is Reducer in MapReduce?
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