What is difference between a MapReduce InputSplit and HDFS block
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what is Speculative Execution?
Explain what does the conf.setmapper class do?
Name job control options specified by mapreduce.
What are ‘maps’ and ‘reduces’?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
What do you mean by inputformat?
In mapreduce what is a scarce system resource? Explain?
How to set which framework would be used to run mapreduce program?
How do reducers communicate with each other?
Explain the input type/format in mapreduce by default?
How to create custom key and custom value in MapReduce Job?
Explain what is distributed cache in mapreduce framework?
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