標籤:err reg and style row monitor 分享 資料 mysqld
mysql-5.7.9 終於提供shutdown 文法啦:
之前如果想關閉一個mysql資料庫可以通過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介面的shutdown文法啦!
SQL介面下的shutdown文法:
文法
shutdown ; -- 這個shutdown要執行成功要有shutdown許可權才行。
shutdown的一個例子:
[[email protected] ansible]# mysql -uroot -h127.0.0.1 -- 登入進mysqlWelcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 3Server 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 itsaffiliates. Other names may be trademarks of their respectiveowners.Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.mysql> shutdown ; -- 通過SQL介面的方式執行shutdownQuery OK, 0 rows affected (0.00 sec)-- 在mysql用戶端下執行system 來執行linux命令 這裡用ps來查看linux上有沒有mysqld 這個服務程式了mysql> system ps -ef | grep mysqlroot 5709 3403 0 13:32 pts/0 00:00:00 mysql -uroot -h127.0.0.1root 5720 5709 0 13:33 pts/0 00:00:00 sh -c ps -ef | grep mysqlroot 5722 5720 0 13:33 pts/0 00:00:00 grep mysql-- 由ps的結果可以看出mysql資料庫已經關閉了(mysqld這個進程沒有了)
如果許可權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是執行個體級的許可權、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)-- 授予[email protected]‘localhost‘使用者shutdown許可權
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mysql-5.7.9 shutdown 文法詳解