Main Components of Hadoop?


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More Apache Hadoop Interview Questions

what is the default replication factor in HDFS?

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Which is the best hadoop certification?

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Does google use hadoop?

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What is IdentityMapper?

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

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Is hadoop obsolete?

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What is Safemode in Apache Hadoop?

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What is HDFS Federation?

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What do you know about nlineoutputformat?

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What is Input Split in hadoop?

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Mention what is the use of Context Object?

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What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

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