What is shuffling in mapreduce?
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What are the various input and output types supported by mapreduce?
When Namenode is down what happens to job tracker?
What happens if the quantity of the reducer is 0 in mapreduce?
what does the text input format do?
What does a 'MapReduce Partitioner' do?
How much space will the split occupy in Mapreduce?
A number of combiners can be changed or not in MapReduce?
What is a "reducer" in Hadoop?
How to set mappers and reducers for MapReduce jobs?
What does conf.setmapper class do?
Why is output file name in Hadoop MapReduce part-r-00000?
What is map/reduce job in hadoop?
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