How many Mappers run for a MapReduce job in Hadoop?


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More MapReduce Interview Questions

What is KeyValueTextInputFormat in Hadoop MapReduce?

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What are the advantages of using map side join in mapreduce?

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What is partitioner and its usage?

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What is partitioning in MapReduce?

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What are the fundamental configurations parameters specified in map reduce?

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How hadoop mapreduce works?

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What is heartbeat in hdfs?

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Explain about the partitioning, shuffle and sort phase

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

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What are ‘maps’ and ‘reduces’?

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what is "map" and what is "reducer" in Hadoop?

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What is the relation between MapReduce and Hive?

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