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How to set mappers and reducers for Hadoop jobs?
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How to compress mapper output in Hadoop?
What are ‘maps’ and ‘reduces’?
In MapReduce Data Flow, when Combiner is called?
What are ‘reduces’?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
Where the mapper's intermediate data will be stored?
What are the configuration parameters in the 'MapReduce' program?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
what job does the conf class do?
Is it possible to search for files using wildcards?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
What is Reduce only jobs?
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