Explain the process of spilling in Hadoop MapReduce?
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What is identity mapper and identity reducer?
What is partitioning in MapReduce?
Can there be no Reducer?
Mention what is the next step after mapper or maptask?
How does MapReduce framework view its input internally?
Illustrate a simple example of the working of MapReduce.
What is reduce side join in mapreduce?
Describe what happens to a mapreduce job from submission to output?
List out Hadoop's three configuration files?
What is mapreduce algorithm?
What are the main components of MapReduce Job?
what does the conf.setMapper Class do ?
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