What can be optimum value for Reducer?
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Mention what are the main configuration parameters that user need to specify to run mapreduce job?
What is identity mapper and identity reducer?
What is shuffling and sorting in Hadoop MapReduce?
How can we control particular key should go in a specific reducer?
What is the problem with the small file in Hadoop?
What are the identity mapper and reducer in MapReduce?
In mapreduce what is a scarce system resource? Explain?
what happens in textinformat ?
What is identity mapper and reducer? In which cases can we use them?
Is YARN a replacement of Hadoop MapReduce?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
How to create a custom key and custom value in MapReduce Job?
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