Define the purpose of the partition function in mapreduce framework


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More MapReduce Interview Questions

How many Reducers run for a MapReduce job?

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In MapReduce, ideally how many mappers should be configured on a slave?

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What is the difference between HDFS block and input split?

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What is the difference between Hadoop and RDBMS?

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How can we assure that the values regarding a particular key goes to the same reducer?

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What is a distributed cache in mapreduce framework?

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What combiners is and when you should use a combiner in a MapReduce Job?

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what is WebDAV in Hadoop?

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What is heartbeat in hdfs? Explain.

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Detail description of the Reducer phases?

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Name job control options specified by mapreduce.

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Clarify what is shuffling in map reduce?

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