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What are mapreduce new and old apis while writing map reduce program?. Explain how it works
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What is the role of a MapReduce partitioner?
How to write a custom partitioner for a Hadoop MapReduce job?
what is storage and compute nodes?
How to set the number of mappers for a MapReduce job?
What is the need of key-value pair to process the data in MapReduce?
How do reducers communicate with each other?
What is a Speculative Execution in Hadoop MapReduce?
how to proceed to write your first mapreducer program?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What is a scarce system resource?
How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
What are the various configuration parameters required to run a mapreduce job?
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