Mention what is the use of Context Object?


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More Apache Hadoop Interview Questions

What is the default block size in hdfs?

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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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Explain how can we change the split size if our commodity hardware has less storage space?

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On which port does ssh work?

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How to Administering Hadoop?

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Can you explain how do ‘map’ and ‘reduce’ work?

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How Mapper is instantiated in a running job?

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How does master slave architecture in the hadoop?

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How indexing is done in HDFS?

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What is Schema on Read and Schema on Write?

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How client application interacts with the NameNode?

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What's the best way to copy files between HDFS clusters?

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