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What are the main components of a Hadoop Application?

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Over the time, there are various forms in which a Hadoop application is defined. But in most of the cases there are following four core components of Hadoop application:

1. HDFS: This is the  file system in which Hadoop data is stored. It is a distributed


file system with very high bandwidth.

2. Hadoop Common: This  is common set of libraries and utilities used by Hadoop.

3. Hadoop MapReduce: This is based on MapReduce algorithm for providing large-scale data processing.

4. Hadoop YARN: This is used for resource management in a Hadoop cluster. It can also schedule tasks for users.

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