How to set mappers and reducers for Hadoop jobs?
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what daemons run on a master node and slave nodes?
In Map Reduce why map write output to Local Disk instead of HDFS?
Explain what is distributed cache in mapreduce framework?
Explain JobConf in MapReduce.
when do reducers play their role in a mapreduce task?
What is a "map" in Hadoop?
What is KeyValueTextInputFormat in Hadoop MapReduce?
Write a short note on the disadvantages of mapreduce
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
What Are Good Use Cases For Impala As Opposed To Hive Or MapReduce?
In MapReduce Data Flow, when Combiner is called?
Can you tell us how many daemon processes run on a hadoop system?
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