What happens when a DataNode fails during the write process?


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More MapReduce Interview Questions

What is the best way to copy files between HDFS clusters?

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

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What is sqoop in Hadoop ?

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Explain the Reducer's Sort phase?

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Why Mapper runs in heavy weight process and not in a thread in MapReduce?

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In mapreduce what is a scarce system resource? Explain?

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what are the most common input formats defined in Hadoop?

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What is a mapreduce algorithm?

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What is mapper in map reduce?

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What is identity mapper and chain mapper?

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What is the difference between Hadoop and RDBMS?

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Explain JobConf in MapReduce.

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