What is the core of the job in MapReduce framework?
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Where is the output of Mapper written in Hadoop?
When the reducers are are started in a mapreduce job?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
Define MapReduce?
Mention when to use Map reduce mode?
what happens in textinformat ?
What do you understand by compute and storage nodes?
Explain the general mapreduce algorithm
How to specify more than one directory as input to the MapReduce Job?
How to set the number of reducers?
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