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Write a Mapreduce Program for Character Count ?
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What are the steps involved in MapReduce framework?
What is shuffling in mapreduce?
what is a Task Tracker in Hadoop?
How many InputSplits is made by a Hadoop Framework?
What is the difference between Reducer and Combiner in Hadoop MapReduce?
What is Shuffling and Sorting in a MapReduce?
How to configure the number of the Combiner in MapReduce?
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
What are the various input and output types supported by mapreduce?
What do you understand by compute and storage nodes?
When should you use sequencefileinputformat?
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