Mention what is the next step after mapper or maptask?
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How to specify more than one directory as input in the Hadoop MapReduce Program?
What is Data Locality in Hadoop?
Why is output file name in Hadoop MapReduce part-r-00000?
How many numbers of reducers run in Map-Reduce Job?
Explain what combiners are and when you should use a combiner in a mapreduce job?
Explain what is shuffling in mapreduce?
what does the text input format do?
How can we control particular key should go in a specific reducer?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
Why Hadoop MapReduce?
Whether the output of mapper or output of partitioner written on local disk?
What is LazyOutputFormat in MapReduce?
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