Resolving Spring Transaction Rollback Failures Caused by MySQL MyISAM Storage Engine

During a Java-based system refactoring project—intended to replace an aging PHP application while reusing its existing MySQL database—developers observed inconsistent transaction behavior. Despite correctly applying @Transactional on service methods and deliberately triggering unchecked exceptions (e.g., int result = 1 / 0;), database changes p ...

Posted on Sun, 13 Sep 2026 16:05:31 +0000 by southofsomewhere

Concurrency Edge Cases: Thread Pool Saturation and Transaction-Lock Semantics

Scenario 1: Unpredictable Thread Pool Rejection in Batch Processing Developers often combine thread pools with coordination utilities like CountDownLatch to process data in chunks. On the surface, the implementation appears flawless. However, under specific conditions, this pattern can trigger intermittent RejectedExecutionException errors, baf ...

Posted on Sun, 16 Aug 2026 16:07:35 +0000 by tazz