What can be optimum value for Reducer?


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More MapReduce Interview Questions

When is it suggested to use a combiner in a MapReduce job?

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What is a distributed cache in mapreduce framework?

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In mapreduce what is a scarce system resource? Explain?

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

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Explain what is shuffling in mapreduce?

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How to set the number of reducers?

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Explain JobConf in MapReduce.

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What are the four basic parameters of a reducer?

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Can we rename the output file?

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What is difference between an input split and hdfs block?

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Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?

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What is Data Locality in Hadoop?

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