Write a Mapreduce Program for Character Count ?
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What is the InputSplit in map reduce ?
With the help of two examples name the map and reduce function purpose
What are the advantages of using map side join in mapreduce?
How to create a custom key and custom value in MapReduce Job?
What is the key- value pair in Hadoop MapReduce?
What is partitioner and its usage?
Explain combiners.
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
Explain the Reducer's Sort phase?
what are the main configuration parameters that user need to specify to run Mapreduce Job ?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
Explain how do ‘map’ and ‘reduce’ work?
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