Define a job tracker?


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More Apache Hadoop Interview Questions

What are the most commonly defined input formats in Hadoop?

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Explain Erasure Coding in Apache Hadoop?

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Which are the three main hdfs-site.xml properties?

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Can we do online transactions(oltp) using hadoop?

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What stored in HDFS?

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Can you explain how do ‘map’ and ‘reduce’ work?

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What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

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What do you understand from Node redundancy and is it exist in hadoop cluster?

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What Mapper does?

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How many instances of tasktracker run on a hadoop cluster?

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What is oozie in hadoop?

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How we can change Replication factor when Data is on the fly?

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