A number of combiners can be changed or not in MapReduce?


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More MapReduce Interview Questions

What are the disservices of utilizing Apache Spark over Hadoop MapReduce?

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How does MapReduce framework view its input internally?

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Mention what is the next step after mapper or maptask?

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In MapReduce Data Flow, when Combiner is called?

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how can you check whether Namenode is working beside using the jps command?

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What do you mean by inputformat?

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Explain what does the conf.setMapper Class do in MapReduce?

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How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?

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What is a partitioner and how the user can control which key will go to which reducer?

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What are the key differences between Pig vs MapReduce?

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Where sorting is done on mapper node or reducer node in MapReduce?

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How do Hadoop MapReduce works?

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