Two‑Phase Commit: The Prepare Phase in MySQL 8.0 InnoDB and Binlog

This article explains how MySQL 8.0 implements the two‑phase commit protocol, detailing when it is used, the responsibilities of the prepare stage for both the binlog and InnoDB storage engines, and the five key actions InnoDB performs during preparation.

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Two‑Phase Commit: The Prepare Phase in MySQL 8.0 InnoDB and Binlog