Fixing Deadlocks on InnoDB row-level locking during simultaneous checkout writes in Legacy Magento 2 Codebases Without Breaking API Contracts
Diagnosing InnoDB Row-Level Deadlocks in Magento 2 Checkout Deadlocks during simultaneous checkout writes in legacy Magento 2 codebases, particularly those leveraging InnoDB’s row-level locking, are a common and frustrating issue. These deadlocks typically manifest when multiple concurrent requests attempt to modify the same database rows, leading to a circular dependency where each transaction waits indefinitely […]