Explain the overview of hadoop history breifly?


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More Apache Hadoop Interview Questions

Input Split & Record Reader and what they do?

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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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Can Apache Kafka be used without Zookeeper?

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What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?

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Which files are used by the startup and shutdown commands?

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what is a datanode?

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Are Namenode and job tracker on the same host?

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What stored in HDFS?

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What is a Secondary Namenode? Is it a substitute to the Namenode?

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What are the additional benefits YARN brings in to Hadoop?

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What is the function of NodeManager?

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