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


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More Apache Hadoop Interview Questions

How many Daemon processes run on a Hadoop system?

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Can hbase run without hadoop?

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how would you modify that solution to only count the number of unique words in all the documents?

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what are the nodes in the Hadoop cluster?

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What is Row Key?

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What is structured data?

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Explain Erasure Coding in Apache Hadoop?

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What exactly is hadoop?

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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 are the functionalities of jobtracker?

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What hadoop does in safe mode?

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Does the hdfs client decide the input split or namenode?

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