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What are the four basic parameters of a reducer?


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More MapReduce Interview Questions

Why is output file name in Hadoop MapReduce part-r-00000?

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Explain task granularity

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Write a short note on the disadvantages of mapreduce

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What are the steps involved in MapReduce framework?

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what happens when Hadoop spawned 50 tasks for a job and one of the task failed?

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what does the text input format do?

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When is it not recommended to use MapReduce paradigm for large

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Differentiate Reducer and Combiner in Hadoop MapReduce?

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How to set the number of mappers for a MapReduce job?

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Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?

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How can you add the arbitrary key-value pairs in your mapper?

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Explain job scheduling through JobTracker

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