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What alternate way does HDFS provides to recover data in case a Namenode


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More Apache Hadoop Interview Questions

Is hadoop a memory?

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What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?

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

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What is nlineoutputformat?

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What are different hdfs dfs shell commands to perform copy operation?

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Can Hadoop be compared to NOSQL database like Cassandra?

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What are watches?

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What does job conf class do?

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What is Writable & WritableComparable interface?

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What do you mean by taskinstance?

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Explain the basic difference between traditional rdbms and hadoop?

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What problems have you faced when you are working on Hadoop code?

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