MySQL InnoDB Redo 与 Undo
redo log重做日志介绍


redo log重做日志的由来


如何写 redo log重做日志的呢

log buffer 往 log file里写 redo log的触发机制


redo log 的特点


undo log 介绍


重做日志文件查看

mysql root@localhost:(none)> show variables like '%undo%'
+--------------------------+------------+
| Variable_name | Value |
+--------------------------+------------+
| innodb_max_undo_log_size | 1073741824 |
| innodb_undo_directory | ./ |
| innodb_undo_log_truncate | OFF |
| innodb_undo_logs | 128 |
| innodb_undo_tablespaces | 0 |
+--------------------------+------------+