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Understand the internal architecture of a distributed file system (DFS), including key components like metadata servers, data nodes, replication mechanisms, and a real-world example using Hadoop HDFS.
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Learn what a Distributed File System is, how it works, its key features, examples like HDFS and GFS, and common use cases such as cloud storage and big data processing.- Published on
A Unique Index enforces distinct values in a column, preventing duplicates while speeding up queries. It's ideal for fields like email or username, ensuring data accuracy with minimal impact on read performance.- Published on
Learn about primary-replica, primary-primary, multi-master, read-replica, snapshot, and hybrid database replication methods. Compare benefits and challenges to pick the right strategy.- Published on
Data Backup and Disaster Recovery are essential for safeguarding organizational data and ensuring business continuity. While backups focus on preserving and restoring lost or corrupted data, disaster recovery encompasses broader strategies for restoring entire IT systems after major disruptions.