Define a daemon?


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More Apache Hadoop Interview Questions

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

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What do masters consist of?

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What is 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 difference between traditional RDBMS and Hadoop?

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

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What is the process to change the files at arbitrary locations in HDFS?

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How to restart Namenode?

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Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

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What do you mean by taskinstance?

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Explain what is sqoop in Hadoop ?

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What is a heartbeat in HDFS?

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