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What is a TaskInstance?
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What is OutputCommitter?
What main configuration parameters are specified in mapreduce?
Explain combiners.
What are the main components of MapReduce Job?
what job does the conf class do?
Explain the process of spilling in MapReduce?
Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?
For a job in Hadoop, is it possible to change the number of mappers to be created?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
What do you know about nlineinputformat?
What is the need of key-value pair to process the data in MapReduce?
How can we control particular key should go in a specific reducer?
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