What is the heartbeat used for?


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More Apache Hadoop Interview Questions

What is a 'block' in HDFS?

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How many instances of tasktracker run on a hadoop cluster?

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Is client the end user in HDFS?

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What is Rack Awareness in Apache Hadoop?

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Why do we use Hadoop?

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Explain the Job OutputFormat?

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Explain Erasure Coding in Apache Hadoop?

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Where is the Mapper Output intermediate kay-value data stored ?

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

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Why password is needed in ssh localhost?

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Name some companies that use Hadoop?

0 Answers   Airtel,


What are the problems with Hadoop 1.0?

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