How do reducers communicate with each other?
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Compare RDBMS with Hadoop MapReduce.
Name job control options specified by mapreduce.
What is a TaskInstance?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
How to optimize Hadoop MapReduce Job?
Define Writable data types in Hadoop MapReduce?
What can be optimum value for Reducer?
Is it possible to split 100 lines of input as a single split in MapReduce?
In mapreduce what is a scarce system resource? Explain?
What do you understand by compute and storage nodes?
Why Mapreduce output written in local disk?
What is sqoop in Hadoop ?
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