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What is a namenode? How many instances of namenode run on a hadoop cluster?


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More Apache Hadoop Interview Questions

What is output format in hadoop?

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what are the steps involved in commissioning adding

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Is hadoop the future?

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What are different hdfs dfs shell commands to perform copy operation?

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What is the full form of fsck?

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What is the default replication factor?

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In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?

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Is secondary namenode a substitute to the namenode?

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what are the steps involved in decommissioning removing

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Define fault tolerance?

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what is difference between int and intwritable?

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What is difference between regular file system and HDFS?

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