From an article to a library: hybrid caching for Spring Boot, completed
Mahmoud Nawwar developed a production-ready Spring Boot library, hybrid-cache-spring-boot-starter, based on a previously published article about combining Caffeine and Redis for hybrid caching. The library addresses gaps not covered in the original guide, such as cross-node invalidation, efficient cache clearing, and message routing. It is now available on Maven Central for developers to use instead of building the integration manually.
- ▪The hybrid-cache-spring-boot-starter library enables efficient hybrid caching using Caffeine for fast local reads and Redis for distributed coherence.
- ▪It supports a complete cross-node invalidation pipeline, including handling of updates, TTL expirations, and self-skip to prevent unnecessary cache misses.
- ▪The library uses a single Redis pub/sub topic for invalidation messages, improving scalability and debuggability.
- ▪Cache clearing is optimized using O(1) generation counters to avoid performance issues with large caches.
- ▪Keys are stringified at the cache boundary to ensure consistent serialization across nodes, requiring stable toString() implementations for custom key types.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 2646325) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Mahmoud Nawwar Posted on May 1 From an article to a library: hybrid caching for Spring Boot, completed #showdev #java #springboot #opensource A while ago I published Hybrid Cache Strategy in Spring Boot: A Guide to Redisson and Caffeine Integration. It walked through the core idea: Caffeine in front for sub-millisecond reads, Redis behind for cross-node coherence, integrated cleanly into Spring's @Cacheable abstraction.
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