How to configure hadoop to reuse JVM for mappers?

783

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How to resolve IOException: Cannot create directory

667

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How to change replication factor of files already stored in HDFS?

695

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shouldn't DFS be able to handle large volumes of data already?

756

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what is a datanode?

634

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How does NameNode tackle DataNode failures?

869

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What is InputSplit and RecordReader?

629

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What is the purpose of dfsadmin tool?

901

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How can you connect an application

710

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how is a file of the size 1 GB uncompressed

581

---

Is map like a pointer?

665

---

What is the default replication factor?

679

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How can one increase replication factor to a desired value in Hadoop?

774

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What is a Record Reader in hadoop?

671

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What is version-id mismatch error in hadoop?

743

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