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


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More MapReduce Interview Questions

How hadoop mapreduce works?

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What is the difference between a MapReduce InputSplit and HDFS block?

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Is it important for Hadoop MapReduce jobs to be written in Java?

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when do reducers play their role in a mapreduce task?

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What happen if the number of the reducer is 0 in MapReduce?

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Where sorting is done in Hadoop MapReduce Job?

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What is an input reader in reference to mapreduce?

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What is the default input type in MapReduce?

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How many Reducers run for a MapReduce job?

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What is the difference between an RDBMS and Hadoop?

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How many Mappers run for a MapReduce job?

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how can you check whether Namenode is working beside using the jps command?

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