Explain what are the basic parameters of a mapper?


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More MapReduce Interview Questions

Explain Working of MapReduce?

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How to optimize Hadoop MapReduce Job?

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How to set which framework would be used to run mapreduce program?

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Explain what are the basic parameters of a mapper?

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How to set the number of mappers to be created in MapReduce?

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What is the key- value pair in Hadoop MapReduce?

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How do you stop a running job gracefully?

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Can MapReduce program be written in any language other than Java?

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Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?

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Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?

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How to set mappers and reducers for Hadoop jobs?

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Map reduce jobs take too long. What can be done to improve the performance of the cluster?

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