What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?


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More Apache Hadoop Interview Questions

What is the purpose of button groups?

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Can Hadoop be compared to NOSQL database like Cassandra?

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What is zookeeper in hadoop?

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Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

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What is Partioner in hadoop? Where does it run

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Does google use hadoop?

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What is the sequencefileinputformat in hadoop?

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How did you debug your Hadoop code ?

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Explain the wordcount implementation via hadoop framework ?

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How to exit the vi editor?

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How indexing is done in HDFS?

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What are the site-specific configuration files in Hadoop?

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