Description: Expire is a command that sets a time limit on a key, after which the key will be automatically deleted. This mechanism is fundamental in in-memory storage systems, where efficient data management is crucial. By using the ‘expire’ command, developers can define a specific lifespan for keys, allowing for memory release and maintaining system performance. Key expiration is especially useful in applications where data is temporary or where precise control over the duration of stored information is required. Additionally, this command can be used in conjunction with other commands in various storage systems to create more complex and dynamic data structures, facilitating the implementation of caches, user sessions, and other design patterns that depend on data temporality. The ability to set an expiration time also helps prevent excessive memory usage, ensuring that obsolete data does not remain in the system beyond its usefulness.
