mysql-5.7.9 shutdown 语法详解

shutdown的一个例子：

[root@workstudio ansible]# mysql -uroot -h127.0.0.1  -- 登录进mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.18-enterprise-commercial-advanced-log MySQL Enterprise Server - Advanced Edition (Commercial)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

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

mysql> shutdown ; -- 通过SQL接口的方式执行shutdown
Query OK, 0 rows affected (0.00 sec)

-- 在mysql客户端下执行system 来执行linux命令 这里用ps来查看linux上有没有mysqld 这个服务程序了
mysql> system ps -ef | grep mysql
root       5709   3403  0 13:32 pts/0    00:00:00 mysql -uroot -h127.0.0.1
root       5720   5709  0 13:33 pts/0    00:00:00 sh -c  ps -ef | grep mysql
root       5722   5720  0 13:33 pts/0    00:00:00 grep mysql

-- 由ps的结果可以看出mysql数据库已经关闭了(mysqld这个进程没有了)

如果权限不足会看下如下效果：

mysql> shutdown;
ERROR 1227 (42000): Access denied; you need (at least one of) the SHUTDOWN privilege(s) for this operation

由于shutdown是实例级的权限、所以授权语句如下：

mysql> grant shutdown on *.* to jiangle@‘localhost‘ ;
Query OK, 0 rows affected, 1 warning (0.00 sec)

-- 授予jiangle@‘localhost‘用户shutdown权限

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mysql-5.7.9 shutdown 语法详解

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