mysql 动态修改参数

mysql>  show variables like '%sync_binlog%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| sync_binlog   | 2     |
+---------------+-------+
1 row in set (0.00 sec)


SET GLOBAL sync_binlog = 5; 


重新登录:

[root@master aa]# mysql -uroot -p1234567
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 48
Server version: 5.6.22-log Source distribution

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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>   show variables like '%sync_binlog%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| sync_binlog   | 5     |
+---------------+-------+
1 row in set (0.00 sec)


还需要写入my.cnf文件