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If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?


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More Hadoop General Interview Questions

Where are hadoop’s configuration files located and list them?

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What is Federation?

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Explain the core methods of the reducer?

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What is Balancer in Hadoop?

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Is hadoop still in demand?

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Why we use intwritable instead of int? Why we use longwritable instead of long?

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Explain small file problem in hadoop

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Where is hadoop-env.sh file present?

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Why do we need Hadoop?

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What do you know about the speculative execution?

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Compare Hadoop and RDBMS?

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Which modes can Hadoop be run in? List a few features for each mode?

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