Is it necessary to write jobs for hadoop in the java language?


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More Apache Hadoop Interview Questions

How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?

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What is Hadoop Custom partitioner ?

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What is HDFS Federation?

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Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

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Explain the use of tasktracker in the hadoop cluster?

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How many maximum jvm can run on a slave node?

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What is version-id mismatch error in hadoop?

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How can I install Cloudera VM in my system?

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What is compute and Storage nodes?

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Explain what happens in textinformat ?

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Explain the use of .mecia class?

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Is a job split into maps?

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