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  1. Categories >> Software >> Big Data >> Hadoop >> MapReduce
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What combiners is and when you should use a combiner in a MapReduce Job?

Question Posted / jh naidu

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More MapReduce Interview Questions

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

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Compare Pig vs Hive vs Hadoop MapReduce?

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When is the reducers are started in a MapReduce job?

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what is Speculative Execution?

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Can there be no Reducer?

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Where is Mapper output stored?

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What MapReduce framework consists of?

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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 the problem with the small file in Hadoop?

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What is the inputsplit in map reduce software?

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What is an identity mapper and identity reducer?

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What is KeyValueTextInputFormat in Hadoop MapReduce?

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