What do masters consist of?


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More Apache Hadoop Interview Questions

How did you debug your Hadoop code ?

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Where do you specify the Mapper Implementation?

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What is the communication channel between client and namenode/datanode?

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Which data storage components are used by hadoop?

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What is Disk Balancer in Apache Hadoop?

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What is a Secondary Namenode? Is it a substitute to the Namenode?

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How is hadoop different from other data processing tools?

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What does ‘jps’ command do?

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What are the problems with Hadoop 1.0?

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Define a job tracker?

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Which command is used for the retrieval of the status of daemons running the hadoop cluster?

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How many instances of tasktracker run on a hadoop cluster?

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