WordPress Development Recipe: Implementing a secure lock mechanism for multi-worker Cron tasks with WP HTTP API
The Problem: Concurrent Cron Execution in Distributed WordPress Environments In a typical single-server WordPress setup, scheduled tasks (cron jobs) are straightforward. WordPress’s built-in `wp_cron()` function handles execution. However, as WordPress deployments scale to multiple web servers behind a load balancer, a critical race condition emerges. Each server, independently checking for due cron events, can trigger […]