What is the problem with the small file in Hadoop?
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More MapReduce Interview Questions
What is the role of a MapReduce partitioner?
When is it not recommended to use MapReduce paradigm for large scale data processing?
What is InputFormat in Hadoop MapReduce?
With the help of two examples name the map and reduce function purpose
Compare RDBMS with Hadoop MapReduce.
What happen if the number of the reducer is 0 in MapReduce?
What is the purpose of textinputformat?
How to set the number of mappers to be created in MapReduce?
Explain what does the conf.setMapper Class do in MapReduce?
How do reducers communicate with each other?
Explain how do ‘map’ and ‘reduce’ work?
Mention Hadoop core components?
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