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尝试向用户授予权限后,MySQL服务停止

2019-08-06 12:14:07 阅读：327 来源： 互联网

标签：mysql-5-6 mysql permissions mysql-5-5 users

我正在使用MySQL 5.6,我试图为特定数据库创建一个超级用户,但我得到了

ERROR 1396 (HY000): Operation CREATE USER failed for 'superuser'@'%'

然后我想也许已经有一个用户具有相同的名称和密码.我刷新了权限并运行以下查询：

grant all privileges on db1.* to 'superuser'@'localhost'

在那个查询之后我得到：ERROR 2013(HY000)：在查询期间丢失了与MySQL服务器的连接
和MySQL服务停止工作.

解决方法:

我认为你的问题归结为拨款错位.

运行此查询时

SELECT COUNT(1) column_count FROM information_schema.columns
WHERE table_schema='mysql' AND table_name='user';

您应该使用以下号码

>如果你得到43,MySQL 5.6
>如果你得到42,MySQL 5.5
>如果你得到39,MySQL 5.1
>如果你得到37,MySQL 5.0

它只是意味着您忘记了另一个升级步骤

# mysql_upgrade --upgrade-system-tables

这应该填写缺少的列.

我之前讨论过这个

> 2013年5月1日：Can I find out what version of MySQL from the data files?
> 2014年4月24日：mysql: Restore All privileges to admin user (StackOverflow)

既然你说mysql.user有39,那就意味着你从MySQL 5.1到MySQL 5.5时没有运行mysql_upgrade –upgrade-system-tables.

老实说,我不知道在MySQL 5.6中运行mysql_upgrade –upgrade-system-tables是否会成功重新调整mysql.user两个版本.

我建议通过以下方式制作副本

net stop mysql
cd D:\MySQL\mysql
copy user.frm user1.frm
copy user.MYD user1.MYD
copy user.MYI user1.MYI
net start mysql

完成复制后,继续运行mysql_upgrade –upgrade-system-tables.登录mysql并运行SELECT COUNT(1)column_count FROM information_schema.columns WHERE table_schema =’mysql’AND table_name =’user’;再次.希望它会读到43.

如果没有,请像这样复制用户文件

net stop mysql
cd D:\MySQL\mysql
del user.*
move user1.frm user.frm
move user1.MYD user.MYD
move user1.MYI user.MYI
net start mysql

如果要手动更改设计,请尝试以下操作：

使用MySQL 5.6布局创建mysql.user_new

CREATE TABLE mysql.user_new (
  `Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
  `User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
  `Password` char(41) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL DEFAULT '',
  `Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Insert_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Update_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Delete_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Create_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Drop_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Reload_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Shutdown_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Process_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `File_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Grant_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Index_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Alter_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Show_db_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Super_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Execute_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Repl_slave_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Repl_client_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Create_user_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `Create_tablespace_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  `ssl_type` enum('','ANY','X509','SPECIFIED') CHARACTER SET utf8 NOT NULL DEFAULT '',
  `ssl_cipher` blob NOT NULL,
  `x509_issuer` blob NOT NULL,
  `x509_subject` blob NOT NULL,
  `max_questions` int(11) unsigned NOT NULL DEFAULT '0',
  `max_updates` int(11) unsigned NOT NULL DEFAULT '0',
  `max_connections` int(11) unsigned NOT NULL DEFAULT '0',
  `max_user_connections` int(11) unsigned NOT NULL DEFAULT '0',
  `plugin` char(64) COLLATE utf8_bin DEFAULT '',
  `authentication_string` text COLLATE utf8_bin,
  `password_expired` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
  PRIMARY KEY (`Host`,`User`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Users and global privileges';

将拨款从旧移动到新

INSERT INTO mysql.user_new
(Host,User,Password,Select_priv,Insert_priv,Update_priv,Delete_priv,
Create_priv,Drop_priv,Reload_priv,Shutdown_priv,Process_priv,File_priv,
Grant_priv,References_priv,Index_priv,Alter_priv,Show_db_priv,Super_priv,
Create_tmp_table_priv,Lock_tables_priv,Execute_priv,Repl_slave_priv,
Repl_client_priv,Create_view_priv,Show_view_priv,Create_routine_priv,
Alter_routine_priv,Create_user_priv,Event_priv,Trigger_priv,ssl_type,
ssl_cipher,x509_issuer,x509_subject,max_questions,
max_updates,max_connections,max_user_connections)
SELECT
Host,User,Password,Select_priv,Insert_priv,Update_priv,Delete_priv,
Create_priv,Drop_priv,Reload_priv,Shutdown_priv,Process_priv,File_priv,
Grant_priv,References_priv,Index_priv,Alter_priv,Show_db_priv,Super_priv,
Create_tmp_table_priv,Lock_tables_priv,Execute_priv,Repl_slave_priv,
Repl_client_priv,Create_view_priv,Show_view_priv,Create_routine_priv,
Alter_routine_priv,Create_user_priv,Event_priv,Trigger_priv,ssl_type,
ssl_cipher,x509_issuer,x509_subject,max_questions,
max_updates,max_connections,max_user_connections
FROM mysql.user;

更新root的Create_tablespace_priv

UPDATE mysql.user_new SET Create_tablespace_priv='Y' WHERE user = 'root';

调节开关

ALTER TABLE mysql.user RENAME mysql.user_old;
ALTER TABLE mysql.user_new RENAME mysql.user;
FLUSH PRIVILEGES;

试一试,看看一切是否正常！

标签：mysql-5-6,mysql,permissions,mysql-5-5,users
来源： https://codeday.me/bug/20190806/1599269.html

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尝试向用户授予权限后,MySQL服务停止