[英]What is the difference between my.cnf vs mysql.cnf?
In /etc/mysql/ I see two config files: my.cnf and mysql.cnf 在/ etc / mysql /中我看到两个配置文件:my.cnf和mysql.cnf
Both have almost identical contents. 两者的内容几乎相同。 One of them has been recently updated via apt-get. 最近通过apt-get更新了其中一个。 Looks like one of them is obsolete. 看起来其中一个已经过时了。
Can somebody explain what's the difference between these two and if I can delete one of them? 有人可以解释这两者之间的区别是什么,如果我可以删除其中一个?
Using Ubuntu 16.10 and Mysql 5.7.8 here. 在这里使用Ubuntu 16.10和Mysql 5.7.8。
tl;dr They are the same file. tl; dr他们是同一个文件。
In Ubuntu 16.04 /etc/mysql/my.cnf
is a symlink to /etc/alternatives/my.cnf
which by default is a symlink to /etc/mysql/mysql.cnf
. 在Ubuntu 16.04 /etc/mysql/my.cnf
是一个符号链接/etc/alternatives/my.cnf
默认为一个符号链接/etc/mysql/mysql.cnf
。
Seems like a lot of symlinks, but they wanted MySQL to read from /etc/mysql/my.cnf
and also use the alternatives mechanism. 看起来像很多符号链接,但他们希望MySQL从/etc/mysql/my.cnf
读取并使用替代机制。
I have the same question. 我也有同样的问题。
I will assume you meant /etc/mysql/my.cnf
and /etc/mysql/mysql.cnf
because I actually have a lot of MySQL configuration files. 我假设您的意思是/etc/mysql/my.cnf
和/etc/mysql/mysql.cnf
因为我实际上有很多MySQL配置文件。
I tested and both are required - MySQL will not start up unless they are both present, even though they contain the same content. 我测试过,两者都是必需的 - 除非它们都存在,否则MySQL不会启动,即使它们包含相同的内容。
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!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
From what I understand, mysql.cnf
are the Ubuntu specific MySQL settings and my.cnf
are the MySQL default settings. 根据我的理解, mysql.cnf
是Ubuntu特定的MySQL设置, my.cnf
是MySQL的默认设置。
The MySQL documentation contains a table describing what the various config files are supposed to be used for, but it doesn't mention mysql.cnf. MySQL文档包含一个表,描述了各种配置文件应该用于什么,但它没有提到mysql.cnf。
/etc/my.cnf
Global options /etc/my.cnf
全球选项 /etc/mysql/my.cnf
Global options /etc/mysql/my.cnf
全局选项 SYSCONFDIR/my.cnf
Global options SYSCONFDIR/my.cnf
全局选项 $MYSQL_HOME/my.cnf
Server-specific options (server only) $MYSQL_HOME/my.cnf
特定于服务器的选项(仅限服务器) defaults-extra-file
The file specified with --defaults-extra-file, if any defaults-extra-file
使用--defaults-extra-file指定的文件(如果有) ~/.my.cnf
User-specific options ~/.my.cnf
用户特定选项 ~/.mylogin.cnf
User-specific login path options (clients only) ~/.mylogin.cnf
用户特定的登录路径选项(仅限客户端) And as you can see by the contents of these two config file from this blog my theory seems to be correct. 正如你可以从这个博客中看到这两个配置文件的内容我的理论似乎是正确的。
On my system, I actually have quite a few other configuration files which correspond to the various sections of the MySQL, so you can edit those instead of using the various sections. 在我的系统上,我实际上有相当多的其他配置文件对应于MySQL的各个部分,因此您可以编辑它们而不是使用各个部分。
[mysqld] 的[mysqld]
These properties are for the MySQL Server, and you can use this file: /etc/mysql/mysql.conf.d/mysqld.cnf
这些属性适用于MySQL Server,您可以使用此文件: /etc/mysql/mysql.conf.d/mysqld.cnf
[mysql] [MySQL的]
These properties are for the MySQL Client (command line), and you can use this file: /etc/mysql/conf.d/mysql.cnf
这些属性适用于MySQL客户端(命令行),您可以使用此文件: /etc/mysql/conf.d/mysql.cnf
[mysqld_safe] [mysqld_safe的]
These properties are for MySQL when you start it up in safe mode using mysql_safe and can be found in this file: /etc/mysql/conf.d/mysqld_safe_syslog.cnf
当您使用mysql_safe以安全模式启动时,这些属性适用于MySQL,可在此文件中找到: /etc/mysql/conf.d/mysqld_safe_syslog.cnf
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