What is the heartbeat used for?


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More Apache Hadoop Interview Questions

What is 'Key value pair' in HDFS?

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Does hadoop always require digital data to process?

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How to change from su to cloudera?

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Does the hdfs client decide the input split or namenode?

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What are the two main components of ResourceManager?

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What is the difference between hadoop and other data processing tools?

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What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

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What is Row Key?

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What is HDFS Block size? How is it different from traditional file system block size?

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What are different hdfs dfs shell commands to perform copy operation?

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Is hadoop a memory?

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What are different types of filesystem?

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