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What happens to a namenode, when job tracker is down?


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More Apache Hadoop Interview Questions

shouldn't DFS be able to handle large volumes of data already?

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Whats is distributed cache in hadoop?

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Is hadoop a database?

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What do you know about nlineoutputformat?

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How can you overwrite the replication factors in HDFS?

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What do you mean by taskinstance?

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What is the function of NodeManager?

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On what basis name node distribute blocks across the data nodes?

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Why are the number of splits equal to the number of maps?

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Explain the basic difference between traditional rdbms and hadoop?

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Input Split & Record Reader and what they do?

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Can we do online transactions(oltp) using hadoop?

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