what are the three modes in which Hadoop can be run?
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When the reducers are are started in a mapreduce job?
Name job control options specified by mapreduce.
What is a mapreduce algorithm?
What is the difference between RDBMS with Hadoop MapReduce?
What are the advantages of using map side join in mapreduce?
What are the various input and output types supported by mapreduce?
What are the steps involved in MapReduce framework?
What is identity mapper and reducer? In which cases can we use them?
Which are the methods in the mapper interface?
When Namenode is down what happens to job tracker?
What is shuffling in mapreduce?
What are the main configuration parameters in a MapReduce program?