Description: The expiration time in Redis refers to the period remaining before a specific key ceases to exist in the database. This mechanism is fundamental for efficient memory management and performance optimization in systems that require temporary data storage. By setting an expiration time, developers can control the duration of the validity of stored data, which is especially useful in situations where information becomes outdated quickly. Redis allows defining the expiration time in seconds or milliseconds, and once the time runs out, the key is automatically deleted, freeing up resources and preventing unnecessary memory usage. This feature is particularly relevant in caching applications and session management systems, where the expiration of information is crucial for security and efficiency. Additionally, the expiration time can be used in conjunction with other Redis functionalities, such as data persistence and replication, allowing developers to create robust and scalable solutions.
