INFRA
Hosting & Infrastructure
Server configuration, caching layers, queues, observability and deployment practice.
Redis or Memcached: What the WordPress Object Cache Needs
Both backends store the same WordPress keys. What decides the choice is eviction, restarts, shared servers and what wp_cache_flush really clears.
INFRA
Tomas Lindqvist
07 AUG 2026 · 8M
From WP-Cron to a Job Queue With Claims, Retries and Dead Letters
WP-Cron runs when traffic arrives. System cron fixes the trigger; a queue with an atomic claim, backoff retries and a dead-letter state fixes the work.
INFRA
Tomas Lindqvist
04 JUN 2026 · 8M
Deciding What Invalidates What Before the Cache Bugs Arrive
An object cache with no invalidation plan serves stale data either on a timer or forever. How to choose between counter bumps, key deletes and versioned keys.
INFRA
Tomas Lindqvist
27 MAY 2026 · 8M
What to Log on a Store, and What Has to Stay Out of the Log
Logs, metrics and traces answer different questions. What a WooCommerce store should record, what must never reach a file, and which alerts earn a page.
INFRA
Tomas Lindqvist
26 FEB 2026 · 8M
EXPLAIN as a Design Tool for WooCommerce Order Queries
The orders screen sorts by date and filters by status. Read the EXPLAIN output first, because the write path pays for every index you add.
INFRA
Ana Ferreiro
20 NOV 2025 · 8M