Explain what are the basic parameters of a mapper?
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What is the data storage component used by Hadoop?
Difference between mapreduce and spark
What are the steps involved in MapReduce framework?
How much space will the split occupy in Mapreduce?
Is it mandatory to set input and output type/format in MapReduce?
how to proceed to write your first mapreducer program?
What is the difference between map and reduce?
What is the Hadoop MapReduce API contract for a key and value Class?
Can we rename the output file?
What is the need of key-value pair to process the data in MapReduce?
When the reducers are are started in a mapreduce job?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
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