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Explain the Reducer's Sort phase?
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What do you understand by the term Straggler ?
What is SequenceFileInputFormat?
Explain what combiners are and when you should use a combiner in a mapreduce job?
Write a short note on the disadvantages of mapreduce
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
Which are the methods in the mapper interface?
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what daemons run on a master node and slave nodes?
When is it not recommended to use MapReduce paradigm for large scale data processing?
How do reducers communicate with each other?
What is InputFormat in Hadoop MapReduce?
Whether the output of mapper or output of partitioner written on local disk?
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