Undo Log Version Chain Rollback Under MySQL High Concurrency: Deep Dive into Row Data Recovery
In the scenario of MySQL InnoDB high-concurrency writes to the same row, the Undo Log version chain is the core mechanism ensuring transaction atomicity and implementing MVCC. When a transaction in the version chain rolls back, InnoDB doesn't simply "delete" that transaction's version record. Instead, it traverses the version chain in ...
Posted on Sat, 09 May 2026 14:37:02 +0000 by ziegel