What is the use of Combiner?


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More Apache Hadoop Interview Questions

How to Administering Hadoop?

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What is DistributedCache and its purpose?

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Can we have multiple entries in the master files?

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How many instances of tasktracker run on a hadoop cluster?

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Explain the features of pseudo mode?

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What are the steps to submit a Hadoop job?

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How does a namenode handle the failure of the data nodes?

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How to change Replication Factor For below cases ?

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What happens to a NameNode that has no data?

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How indexing is done in HDFS?

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What is the purpose of dfsadmin tool?

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How to resolve small file problem in hdfs?

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