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What is the jobtracker and what it performs in a hadoop cluster?


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More Apache Hadoop Interview Questions

What is compute and Storage nodes?

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What is Hadoop Custom partitioner ?

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What is the difference between HDFS and NAS ?

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what factors the block size takes before creation?

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Which one is default InputFormat in Hadoop ?

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

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Define a datanode?

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Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?

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What do you know about nlineoutputformat?

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Define streaming access?

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Explain Erasure Coding in Apache Hadoop?

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What are the main components of a Hadoop Application?

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