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Why can aggregation not be done in Mapper in MapReduce?
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How can you add the arbitrary key-value pairs in your mapper?
Why can aggregation not be done in Mapper in MapReduce?
What is a map side join?
what are the three modes in which Hadoop can be run?
How does Mappers run method works?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
What Are Good Use Cases For Impala As Opposed To Hive Or MapReduce?
How does inputsplit in mapreduce determines the record boundaries correctly?
Define the purpose of the partition function in mapreduce framework
How do reducers communicate with each other?
What main configuration parameters are specified in mapreduce?
What is the inputsplit in map reduce software?
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