mysql-5.7.9 shutdown 語法詳解
阿新 • • 發佈：2017-06-20
mysql-5.7.9 終於提供shutdown 語法啦：
之前如果想關閉一個mysql數據庫可以通過kill 命令、mysqladmin shutdown 、service mysqld stop 等這樣的方式。
然而在mysql-5.7.9之後mysql終於提供了SQL接口的shutdown語法啦！
SQL接口下的shutdown語法：
語法
shutdown ; -- 這個shutdown要執行成功要有shutdown權限才行。
shutdown的一個例子：
[[email protected] ansible]# mysql -uroot -h127.0.0.1 -- 登錄進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 ; -- 通過SQL接口的方式執行shutdown Query OK, 0 rows affected (0.00 sec) -- 在mysql客戶端下執行system 來執行linux命令 這裏用ps來查看linux上有沒有mysqld 這個服務程序了 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的結果可以看出mysql數據庫已經關閉了(mysqld這個進程沒有了)
如果權限不足會看下如下效果：
mysql> shutdown; ERROR 1227 (42000): Access denied; you need (at least one of) the SHUTDOWN privilege(s) for this operation
由於shutdown是實例級的權限、所以授權語句如下：
mysql> grant shutdown on *.* to [email protected]‘localhost‘ ; Query OK, 0 rows affected, 1 warning (0.00 sec) -- [email protected]
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mysql-5.7.9 shutdown 語法詳解