Can there be no Reducer?
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More MapReduce Interview Questions
When is it suggested to use a combiner in a MapReduce job?
Explain combiners.
Explain the difference between a MapReduce InputSplit and HDFS block?
What is a Distributed Cache in Hadoop?
How many numbers of reducers run in Map-Reduce Job?
Explain the general mapreduce algorithm
How to set mappers and reducers for MapReduce jobs?
Is there any point of learning mapreduce, then?
when do reducers play their role in a mapreduce task?
What is map/reduce job in hadoop?
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
In Map Reduce why map write output to Local Disk instead of HDFS?
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