What is a mapreduce algorithm?
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what daemons run on a master node and slave nodes?
Explain how do ‘map’ and ‘reduce’ work?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
What do you mean by inputformat?
Explain combiners.
Explain InputSplit in Hadoop MapReduce?
Explain the process of spilling in Hadoop MapReduce?
Can we submit the mapreduce job from slave node?
Explain what does the conf.setmapper class do?
how Hadoop is different from other data processing tools?
What is identity mapper and identity reducer?
What is partitioner and its usage?
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