CacheLebensdauer
CacheLebensdauer, also known as cache lifetime or time‑to‑live (TTL), is the period during which cached data remains valid before it must be refreshed or removed. It is a fundamental parameter in caching systems, governing how long an entry is considered fresh and can be served to clients or requests without consulting the original data source.
In web environments, the CacheLebensdauer is controlled by HTTP cache headers such as Cache‑Control: max‑age, Expires,
Implementing an appropriate CacheLebensdauer is critical. A short lifespan guarantees fresh data but may increase traffic
Cache invalidation mechanisms, such as manual flushes, versioning, or write to cache events, complement the CacheLebensdauer