1.查看mysql是否启用了日志记录:
mysql> show variables like 'log_bin';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_bin | OFF |
+---------------+-------+
1 row in set (0.00 sec)
此时是OFF状态,即没有启用日志记录2.启用mysql日志:
root@ubuntu:/# vim /etc/mysql/my.cnf
自己的my.cnf文件自己查找可以用find命令,如root@ubuntu:/# find / -name "my.cnf"即在根目录及其所有子目录里查找my.cnf文件找到:
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log_bin = /var/log/mysql/mysql-bin.log将前面的注释去掉,保存
3.重启mysql:
root@ubuntu:/etc/mysql# service mysql restart
4.再登录mysql测试一下:
mysql> show variables like 'log_bin';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_bin | ON |
+---------------+-------+
1 row in set (0.00 sec)此时就为ON,记录日志了
mysql> create database abcd;
Query OK, 1 row affected (0.00 sec)
mysql> drop database abcd;
Query OK, 0 rows affected (0.07 sec)mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 270 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
查看当前记录状态,当前记录文件为mysql-bin.000001
mysql> quit
Bye
5.然后到刚才的log_bin的路径目录下去查看日志记录
root@ubuntu:/etc/mysql/conf.d# vim /var/log/mysql/mysql-bin.000001
就可以看到刚才执行的sql语句记录,我这里是由于编码的问题 所以显示的是乱码
今天碰到问题了,这样修改了之后,再改IP,结果站点就没法访问了,打开站点的时候,提示mysql connection fail 并且mysql启动不了
想了下,仅仅只是昨天修改了my.cnf文件,然后就把修改的地方还原了,结果立马就好了,奇了怪了!