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Mention what are the main configuration parameters that user need to specify to run mapreduce job?
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What is the utility of using Writable Comparable Custom Class in Map Reduce code?
How does MapReduce framework view its input internally?
mapper or reducer?
How to set the number of mappers to be created in MapReduce?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What MapReduce framework consists of?
What is the use of InputFormat in MapReduce process?
What happen if the number of the reducer is 0 in MapReduce?
How to set mappers and reducers for Hadoop jobs?
What is a scarce system resource?
what does the conf.setMapper Class do ?
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