What is the core of the job in MapReduce framework?
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What is LazyOutputFormat in MapReduce?
In mapreduce what is a scarce system resource? Explain?
What is the default input type in MapReduce?
Explain what does the conf.setMapper Class do in MapReduce?
Explain the general mapreduce algorithm
MapReduce Types and Formats and Setting up a Hadoop Cluster?
Is it important for Hadoop MapReduce jobs to be written in Java?
Explain the Reducer's Sort phase?
What is the next step after Mapper or MapTask?
What is identity mapper and reducer? In which cases can we use them?
What are the various configuration parameters required to run a mapreduce job?
Explain what is “map” and what is "reducer" in hadoop?
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