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How many instances of a jobtracker run on hadoop cluster?


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More Apache Hadoop Interview Questions

Explain Erasure Coding in Apache Hadoop?

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On what basis name node distribute blocks across the data nodes?

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What is cloudera and why it is used?

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What is the difference between SQL and NoSQL?

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How do you define "block" in HDFS?

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What do you know by storage and compute node?

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What is Schema on Read and Schema on Write?

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How does NameNode tackle DataNode failures?

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what are the nodes in the Hadoop cluster?

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Why do we need a password-less ssh in fully distributed environment?

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Explain what if rack 2 and datanode fails?

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