#Backend Articles — Berkanium

Search May 6, 2026 4 min read

Wiring Elasticsearch into Laravel: Scout, Sync and Zero-Downtime Reindexing

Scout for the write path, raw DSL for the read path: denormalized documents, cascade updates, drift reconciliation, filter-vs-must, hydration without N+1, and the alias pattern from day one.

Database Apr 30, 2026 1 min read

Distributed Locks with Redis: SET NX, Fencing and the Redlock Debate

The minimal correct lock and the four bugs hiding in simpler versions, fencing tokens for the expiry race, Redlock in two fair paragraphs, and the lock-free designs that beat locking entirely.

Database Apr 22, 2026 5 min read

Redis Beyond Caching: Locks, Limits, Queues and Streams

The 95% of Redis teams never open: atomic counters, rate limiters, sorted-set schedulers, pub/sub vs streams (one of them forgets!), queue pragmatics and the eviction-policy line that forces two instances.

Backend Apr 18, 2026 4 min read

API Versioning Without the Regret

The ladder from additive changes to real versions: tolerance rules that make 90% of changes free, deprecated-field telemetry, Sunset headers, brown-outs, and the internal-API discount.