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What happens when the node running the map task fails before the map output has been sent to the reducer?
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Explain what are the basic parameters of a mapper?
How to set which framework would be used to run mapreduce program?
What is partitioning in MapReduce?
In Map Reduce why map write output to Local Disk instead of HDFS?
What are the various input and output types supported by mapreduce?
What is shuffling and sorting in mapreduce?
How many Reducers run for a MapReduce job in Hadoop?
What is the default input type in MapReduce?
When should you use sequencefileinputformat?
What is the key- value pair in MapReduce?
Different ways of debugging a job in MapReduce?
When is the reducers are started in a MapReduce job?
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