What is sqoop in Hadoop ?
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how to proceed to write your first mapreducer program?
what does the text input format do?
what does the conf.setMapper Class do ?
what are the three modes in which Hadoop can be run?
What is the relation between MapReduce and Hive?
How to set mappers and reducers for MapReduce jobs?
What are advantages of Spark over MapReduce?
What is identity mapper and chain mapper?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
Name job control options specified by mapreduce.
Mention what is the hadoop mapreduce apis contract for a key and value class?
Explain JobConf in MapReduce.