Distributed Databases Questions
Data concurrency refers to the ability of multiple users or processes to access and manipulate the same data simultaneously in a distributed database system. It ensures that concurrent transactions can be executed without interfering with each other, maintaining data integrity and consistency.
Data allocation, on the other hand, involves determining how and where data is stored and distributed across multiple nodes or sites in a distributed database. It includes decisions on data partitioning, replication, and placement strategies to optimize performance, availability, and reliability of the system.