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Answer» Hadoop has the following COMPONENTS: - Hadoop Common: A collection of Hadoop tools and libraries.
- Hadoop HDFS: Hadoop's storage unit is the Hadoop Distributed File SYSTEM (HDFS). HDFS stores data in a distributed fashion. HDFS is made up of two parts: a name node and a data node. While there is only one name node, numerous data nodes are possible.
- Hadoop MapReduce: Hadoop's PROCESSING unit is MapReduce. The processing is done on the slave nodes in the MapReduce technique, and the final result is delivered to the master node.
- Hadoop YARN: Hadoop's YARN is an acronym for Yet ANOTHER Resource Negotiator. It is Hadoop's resource management unit, and it is included in Hadoop version 2 as a component. It's in charge of managing cluster resources to avoid overloading a single machine.
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