What is InputFormat in Hadoop MapReduce?
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What does a 'MapReduce Partitioner' do?
How to specify more than one directory as input to the MapReduce Job?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
What is the function of mapreducer partitioner?
What is the job of blend () and repartition () in Map Reduce?
How does MapReduce framework view its input internally?
Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?
Explain the general mapreduce algorithm
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
How much space will the split occupy in Mapreduce?
what are the three modes in which Hadoop can be run?
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