What is a "map" in Hadoop?
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Can we submit the mapreduce job from slave node?
Explain JobConf in MapReduce.
What is an identity mapper and identity reducer?
What main configuration parameters are specified in mapreduce?
Explain the input type/format in mapreduce by default?
Is it possible to split 100 lines of input as a single split in MapReduce?
Where sorting is done on mapper node or reducer node in MapReduce?
what is the Hadoop MapReduce APIs contract for a key and value class?
How many Mappers run for a MapReduce job in Hadoop?
How hadoop mapreduce works?
Explain about the partitioning, shuffle and sort phase in MapReduce?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?