Glossary term
What is Write-through / Write-behind? Meaning for developers
Write to cache and DB together / write to cache first, DB later. Example: Write-behind for view counters.
Learn it properly · System DesignLesson 16: Caching Part 2: Strategies, Eviction and InvalidationAdding a cache is easy; keeping it correct is hard. The six read/write strategies, why you delete rather than update on write, eviction policies you can try by hand, invalidation per data type, and the five ways caches cause outages.