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How many numbers of reducers run in Map-Reduce Job?
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What is the key- value pair in MapReduce?
what are the main configuration parameters that user need to specify to run Mapreduce Job ?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
What is a IdentityMapper and IdentityReducer in MapReduce ?
Explain how mapreduce works.
What is a TaskInstance?
Name job control options specified by mapreduce.
What is MapReduce? What are the syntax you use to run a MapReduce program?
Why can aggregation not be done in Mapper in MapReduce?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
What is reduce side join in mapreduce?
List the configuration parameters that have to be specified when running a MapReduce job.
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