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How to change a number of mappers running on a slave in MapReduce?
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Can we submit the mapreduce job from slave node?
Explain about the partitioning, shuffle and sort phase in MapReduce?
when do reducers play their role in a mapreduce task?
What is MapReduce in Hadoop?
How many Reducers run for a MapReduce job?
How do ‘map’ and ‘reduce’ work?
Why Hadoop MapReduce?
What is mapreduce algorithm?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
Does Partitioner run in its own JVM or shares with another process?
What are the various configuration parameters required to run a mapreduce job?
Is reduce-only job possible in Hadoop MapReduce?
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