What is a Record Reader in hadoop?


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More Apache Hadoop Interview Questions

Define tasktracker.

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what is the default replication factor in HDFS?

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If a data Node is full how it's identified?

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How to use Apache Zookeeper command line interface?

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What is Apache Hadoop?

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Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?

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What is commodity hardware?

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What is a speculative execution in Apache Hadoop MapReduce?

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What is the purpose of RawComparator interface?

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In which location Name Node stores its Metadata and why?

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What is the sequencefileinputformat in hadoop?

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What do you understand from Node redundancy and is it exist in hadoop cluster?

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