What is the difference between a MapReduce InputSplit and HDFS block?
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Describe what happens to a mapreduce job from submission to output?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
What is shuffling and sorting in Hadoop MapReduce?
What platform and Java version is required to run Hadoop?
How is mapreduce related to cloud computing?
what happens in textinformat ?
What is a RecordReader in Hadoop MapReduce?
How does Mappers run method works?
Write a short note on the disadvantages of mapreduce
How many Reducers run for a MapReduce job?
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