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How we can change Replication factor when Data is on the fly?


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More Apache Hadoop Interview Questions

What infrastructure do we need to process 100 TB data using Hadoop?

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

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Is it necessary to write jobs for hadoop in the java language?

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What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?

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What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?

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What problems can be addressed by using Zookeeper?

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What do you mean by taskinstance?

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Can the balancer be run while Hadoop is in use?

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Is hadoop open source?

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How to enable/configure the compression of map output data in hadoop?

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Is it necessary to know java to learn hadoop?

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Explain the difference between NameNode

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