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What is map/reduce job in hadoop?
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What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What is shuffling in mapreduce?
Is it possible to split 100 lines of input as a single split in MapReduce?
What is a combiner and where you should use it?
What is the Job interface in MapReduce framework?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
In mapreduce what is a scarce system resource? Explain?
How to set mappers and reducers for Hadoop jobs?
what is a Task Tracker in Hadoop?
Mention what is the hadoop mapreduce apis contract for a key and value class?
What is identity mapper and identity reducer?
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