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If DataNode increases, then do we need to upgrade NameNode in Hadoop?


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More Hadoop General Interview Questions

Give me an example of document database ?

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What does rack awareness algorithm means?

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If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?

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What does hadoop-metrics.properties file do?

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How many datanodes can run on a single Hadoop cluster?

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In which location name node sores its metadata and why?

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What is Slot in Hadoop v1? Why was it removed from Hadoop v2?

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What happens if the number of reducers is 0 in Hadoop?

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When we send a data to a node, do we allow settling in time, before sending another data to that node?

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What is Identity reducer?

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What is a namenode?

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What are the most common OutputFormat in Hadoop?

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