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What are active and passive "NameNodes"?


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More Apache Hadoop Interview Questions

What is a checkpoint?

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How to resolve small file problem in hdfs?

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

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How Mapper is instantiated in a running job?

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What stored in HDFS?

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What is the difference between SQL and NoSQL?

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Why is Apache Spark faster than Apache Hadoop?

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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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What is the default block size in hdfs?

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How can you overwrite the replication factors in HDFS?

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How to enable recycle bin or trash in hadoop?

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Can the balancer be run while Hadoop is in use?

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