Explain InputFormat?


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More Apache Hadoop Interview Questions

Why are the number of splits equal to the number of maps?

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How to enable/configure the compression of map output data in hadoop?

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Why the name ‘hadoop’?

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What is HDFS Block size? How is it different from traditional file system block size?

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What are the different types of Znodes?

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What is partioner in hadoop? Where does it run,mapper or reducer?

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

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What is the problem with HDFS and streaming data like logs

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What is the main purpose of HDFS fsck command?

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