Apache Hadoop HDFS
HDFS (Hadoop Distributed File System) is a highly available, distributed file system for storing large amounts of data. Data is stored on several computers (nodes) within a cluster. This is done by dividing the files into data blocks of fixed length and distributing them redundantly across the nodes.
The HDFS architecture is composed of master and worker nodes. The master node, called NameNode, is responsible for processing all incoming requests and organizes the storage of files and their associated metadata in the worder nodes, called DataNodes. HDFS is one of the main components of the Hadoop framework.
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