Have you ever used Counters in Hadoop. Give us an example scenario?


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More Apache Hadoop Interview Questions

Is hadoop the future?

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How to write a Custom Key Class?

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What happens to a NameNode that has no data?

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

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Explain the features of pseudo mode?

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what are the steps involved in decommissioning removing

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What is the meaning of speculative execution in Hadoop? Why is it important?

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Can we do online transactions(oltp) using hadoop?

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How client application interacts with the NameNode?

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What is the best hardware configuration to run Hadoop?

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What is the difference between a Hadoop and Relational Database and Nosql?

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Explain what if rack 2 and datanode fails?

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