1.准备工作
登录数据库查看log_bin参数
mysql> show variables like 'log_bin%';
+---------------------------------+-------+
| Variable_name | Value |
+---------------------------------+-------+
| log_bin | OFF |
| log_bin_basename | |
| log_bin_index | |
| log_bin_trust_function_creators | OFF |
| log_bin_use_v1_row_events | OFF |
+---------------------------------+-------+
5 rows in set (0.01 sec)
可以看到所有log_bin相关的状态都是off
2. 配置my.cnf
打开/etc/my.cnf 在日志部分更新如下字段
# LOGGING #
log-error = /usr/local/mysql/data/mysql-error.log
server-id=1
log-bin=mysql-bin主要增加server-id和log-bin字段。
然后重启mysql
/etc/init.d/mysqld restart输入1.中的指令就可以 看到log_bin状态
mysql> show variables like 'log_bin%';
+---------------------------------+---------------------------------------+
| Variable_name | Value |
+---------------------------------+---------------------------------------+
| log_bin | ON |
| log_bin_basename | /usr/local/mysql/data/mysql-bin |
| log_bin_index | /usr/local/mysql/data/mysql-bin.index |
| log_bin_trust_function_creators | OFF |
| log_bin_use_v1_row_events | OFF |
+---------------------------------+---------------------------------------+
5 rows in set (0.01 sec)
然后在/usr/local/mysql/data目录下应该会有mysql-bin.000001 这种文件 这些就记录了数据库的变动