what factors the block size takes before creation?


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More Apache Hadoop Interview Questions

Explain the master class and the output class do?

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

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What is the heartbeat used for?

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What is Derby database?

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did you maintain the hadoop cluster in-house or used hadoop in the cloud?

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What is nlineoutputformat?

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Explain why do we need hadoop?

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What exactly is hadoop?

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What is the sequencefileinputformat in hadoop?

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Explain how do ‘map’ and ‘reduce’ works?

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What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?

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