| innodb_undo_logs | 128 | +---+---+ 1 row in set (0.00 sec) 因为InnoDB undo log功能设计设置2个非动态的启动变量((innodb_undo_tablespaces and innodb_undo_directory), 这个功能只能在MySQL 初始化一个实例的时候启用 使用说明: 使用这个功能,按照以下步骤: 1.确定一个路径来保存undo logs.你会...
Each undo tablespace and the global temporary tablespace individually support a maximum of 128 rollback segments. The innodb_rollback_segments variable defines the number of rollback segments. The number of transactions that a rollback segment supports depends on the number of undo slots in the rol...