Explain the difference between a MapReduce InputSplit and HDFS block?
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What are the data components used by Hadoop?
How does MapReduce framework view its input internally?
Why is output file name in Hadoop MapReduce part-r-00000?
What is Distributed Cache in the MapReduce Framework?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What is the difference between map and reduce?
When Namenode is down what happens to job tracker?
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Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
Where the mapper's intermediate data will be stored?
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