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What is Row Key?


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More Apache Hadoop Interview Questions

On what basis Namenode will decide which datanode to write on?

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what should be the ideal replication factor in hadoop?

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What is Schema on Read and Schema on Write?

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Explain the features of pseudo mode?

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What is the relation between job and task in hadoop?

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What is a block and block scanner in HDFS?

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Do we need to give a password, even if the key is added in ssh?

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How indexing is done in HDFS?

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Explain why the name ‘hadoop’?

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Is hadoop a memory?

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