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How to create custom key and custom value in MapReduce Job?


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More MapReduce Interview Questions

What is Counter in MapReduce?

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What is Reducer in MapReduce?

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what happens in textinformat ?

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What is an identity mapper and identity reducer?

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Clarify what combiners are and when you should utilize a combiner in a map reduce job?

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What is Output Format in MapReduce?

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It can be possible that a Job has 0 reducers?

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how can you debug Hadoop code?

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How to submit extra files(jars, static files) for MapReduce job during runtime?

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What does conf.setmapper class do?

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How do reducers communicate with each other?

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Explain what does the conf.setmapper class do?

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