Define a datanode?


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More Apache Hadoop Interview Questions

What is Writable & WritableComparable interface?

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How do you define "block" in HDFS?

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What is a block and block scanner in HDFS?

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How many instances of JobTracker can run on a Hadoop Cluser?

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Explain the benefits of block transfer?

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How to resolve IOException: Cannot create directory

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Is hadoop based on google mapreduce?

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What is Apache Hadoop YARN?

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Do we need to give a password, even if the key is added in ssh?

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Is secondary namenode a substitute to the namenode?

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What alternate way does HDFS provides to recover data in case a Namenode

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What do you know about sequencefileinputformat?

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