
During May 2025, work focused on enhancing concurrency in the woocommerce/action-scheduler repository by introducing SKIP LOCKED to the action claiming process within the database store. This change addressed deadlocks and improved throughput under high load by allowing multiple processes to claim actions without conflict. The implementation involved PHP and SQL, with careful attention to database schema management and indexing to optimize claim processing speed. Compatibility was ensured across various MySQL and MariaDB versions, as well as older PHP releases. Comprehensive unit tests were added to validate SKIP LOCKED behavior, reflecting a methodical approach to robust, cross-environment feature delivery.
For May 2025, the team delivered a significant concurrency improvement to the Action Scheduler's database store by introducing SKIP LOCKED during action claiming, reducing deadlocks and improving throughput under high load. The work included broader test coverage across MySQL/MariaDB versions, PHP compatibility adjustments, and indexing/schema optimizations, supported by targeted unit tests. The changes were implemented in woocommerce/action-scheduler (commit 240c108eea391fa8ecf9ce83eee8d2c7af10dc71).
For May 2025, the team delivered a significant concurrency improvement to the Action Scheduler's database store by introducing SKIP LOCKED during action claiming, reducing deadlocks and improving throughput under high load. The work included broader test coverage across MySQL/MariaDB versions, PHP compatibility adjustments, and indexing/schema optimizations, supported by targeted unit tests. The changes were implemented in woocommerce/action-scheduler (commit 240c108eea391fa8ecf9ce83eee8d2c7af10dc71).

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