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Is it important for Hadoop MapReduce jobs to be written in Java?
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More MapReduce Interview Questions
What is Counter in MapReduce?
What is a "reducer" in Hadoop?
Explain the input type/format in mapreduce by default?
What does a 'MapReduce Partitioner' do?
When is it suggested to use a combiner in a MapReduce job?
What are the key differences between Pig vs MapReduce?
What is a scarce system resource?
When should you use a reducer?
How do reducers communicate with each other?
When Namenode is down what happens to job tracker?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
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