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What is the job of blend () and repartition () in Map Reduce?


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More MapReduce Interview Questions

Is YARN a replacement of Hadoop MapReduce?

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What is the function of mapreducer partitioner?

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Why can aggregation not be done in Mapper in MapReduce?

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What are the identity mapper and reducer in MapReduce?

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

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MapReduce Types and Formats and Setting up a Hadoop Cluster?

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Define Writable data types in Hadoop MapReduce?

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what is "map" and what is "reducer" in Hadoop?

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What is Reduce only jobs?

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

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How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.

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How does Mappers run method works?

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