Writing & development news

resilience2

Practical notes on Java, Spring, testing, and software engineering, with working examples and source references.

Nov 1, 2026Writing

API caching design: cache keys, TTL, invalidation, and protecting the origin during failures

Explain cache placement, keys, TTL, invalidation, and concurrent misses with Cache-Aside. Use Java to check expiry and capacity limits, and define how to protect the DB when the cache fails.

caching / cache-aside / ttl↗

Nov 1, 2026Writing

Designing fallback during failures: stale responses, reduced functionality, and rejection

Define when fallback is acceptable during external API, cache, and payment failures. Use Java to check data freshness and concurrency limits, then connect retries, recovery, and observability.

fallback / resilience / java↗