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What is a TaskInstance?
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Explain about the basic parameters of mapper and reducer function
What MapReduce framework consists of?
What is shuffling and sorting in mapreduce?
Why do we need MapReduce during Pig programming?
What are the various input and output types supported by mapreduce?
What is heartbeat in hdfs?
How many times combiner is called on a mapper node in Hadoop?
Why comparison of types is important for MapReduce?
What is Distributed Cache in the MapReduce Framework?
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?
What are the configuration parameters in the 'MapReduce' program?
Explain the Reducer's reduce phase?
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