How to change a number of mappers running on a slave in MapReduce?
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How to configure the number of the Combiner in MapReduce?
Explain what does the conf.setMapper Class do in MapReduce?
Define Writable data types in Hadoop MapReduce?
What is the relationship between Job and Task in Hadoop?
What are the main configuration parameters in a MapReduce program?
What is a "map" in Hadoop?
What happens when a datanode fails ?
what happens in textinformat ?
What is the need of MapReduce in Hadoop?
Is it possible to rename the output file?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
What do you mean by inputformat?
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